Well, I can’t explain this clearly. I found some information for you, hope it helps.
Sima Guang once said: Those who are more talented than virtue are villains.
In history, although the traitorous officials Cai Jing, Qin Hui, Yan Hao, etc. were called masters of calligraphy, very few of their calligraphy works have been passed down.
Cai Jing: Calligraphy has its own style
Cai Jing's calligraphy has its own style. Even the arrogant Mi Fu once said that his calligraphy is not as good as Cai Jing's. It is said that Cai Jing once asked Mi Fu: Who is the best calligrapher today? Mi Fu replied: Since Tang Liu Gongquan, you and your brother Cai Bian have to be counted. Cai Jing asked: What next? Mi Fu said: Of course it’s me. At that time, the name Cai in "Su Huang Mi Cai" originally referred to Cai Jing. Later generations hated his treachery and changed his name to Cai Xiang.
Historical records say that one summer, two lower-level officials served Cai Jing extremely respectfully and kept cooling him with fans. Cai Jing was so happy that he asked for a fan and wrote two lines of Du Fu's poems on it for them. Unexpectedly, a few days later, these two guys suddenly became rich. After asking, they found out that their fans had been bought by a prince for 20,000 yuan. Twenty thousand yuan was roughly equivalent to the annual expenses of an ordinary family at that time. And this prince was Song Huizong before he ascended the throne. It can be imagined how much Huizong of the Song Dynasty, who was a calligrapher himself, loved Cai Jing's works.
In the early autumn of the first year of Jingguo's reign (1101), the eunuch Tong Guan was sent to Hangzhou to set up the Mingjin Bureau as an imperial minister. His duty was to collect calligraphy and paintings for the emperor. At this time, Cai Jing had been demoted to Hangzhou for nearly a year. It is said that he provided Tong Guan with a list of names and helped him make suggestions, so that several immortal works among the people in Hangzhou fell into Tong Guan's hands. Among them, there are Wang Youjun's calligraphy, Gu Hongzhong's paintings, and the "Double Screen Chess Picture" by Zhou Wenju of the Southern Tang Dynasty, which Song Huizong dreamed of. This made Tong Guan appear in front of his master, who had been serving him for a short time. The eunuch Tong Guan served as an excellent intermediary and further deepened the emperor's appreciation of Cai Jing. Tong Guan and Cai Jing also colluded with each other, and they worked together to enslave Song Huizong, dragging the Song Dynasty step by step into the abyss of disaster. The fall of the Northern Song Dynasty was largely due to Song Huizong's favoring of Cai Jing, a sycophant, and his disciples Tong Guan and Gao Qiu. However, Song Huizong was ignorant, incompetent, dissolute and shameless, and finally he and his son Qinzong became prisoners of the Jin soldiers. 80-year-old Cai Jing was also exiled. Cai Jing sadly wrote: "Eighty-one years ago, I had no home three thousand miles away, and I was alone with my own flesh and blood. I looked at China in the distance and shed tears. I paid homage to the prime minister for five times in the Golden Palace, and Xuan Ma ten times in the Yutang. I recalled the prosperity of the past. Here I am. Translated into sleep talk." This is Cai Jing's portrayal of his life. On his way to exile and distribution, the people refused to sell him a meal or soup, so they starved to death. After his death, there was no coffin and he was buried in Leuze Garden, which is dedicated to burying homeless people.
Qin Hui: No opportunity to name Song-style characters
Qin Hui was a scholar and was well-educated and accomplished in calligraphy. In his early years as an official, he had a good reputation and was deeply loved by Emperor Huizong of the Song Dynasty. He was unusually appointed as the Zuo Sijian of Yushitai, responsible for handling official documents of Yushitai Yamen. It is said that while processing official documents, Qin Hui discovered that the fonts of these official letters from all over the country were different and very irregular. He used his spare time from official duties to study the fonts with great concentration, especially the calligraphy of Huizong Zhao Ji. Later, he imitated Zhao Ji's "Skinny Gold" style. Based on the "body" font, a unique font is created, which is neat and uniform, easy to learn. So he began to write memorials in the new Chinese characters he created. This attracted Huizong's attention, and he ordered Qin Hui to send his writing model to all parts of the country, requiring that official documents be written in the model font. This measure was quickly promoted. This font gradually evolved into "Song style" for printing. Huizong Zhao Ji's "Slim Gold Style" and "Song Style" are in the same vein. Some people say that Song Style is the printed version of "Slim Gold Style". To this day, Song Ti is still the most widely used font, and it has contributed greatly to the popularization and spread of Chinese characters. Based on this alone, Qin Hui should be one of the most influential calligraphers in Chinese history. According to general custom, the font created by Qin Hui should be called Qin Ti. However, because Qin Hui was a treacherous official, he named this font Song Ti, which can be said to be a waste of time.
Yan Song: Irreplaceable "Zhigongtang"
Yan Song was smart and studious since he was a child. He received enlightenment in Yan's Temple at the age of 5, entered the county school at the age of 9, and was promoted to the top in the county examination at the age of 19. At the age of 25, he passed the Imperial Examination and entered the Hanlin Academy. It can be seen from this academic resume that Yan Song has always been an top student and was a child prodigy. At that time, Emperor Jiajing was fascinated by the art of immortality and liked to pray to heaven with green poems. However, Yan Hao was good at drafting Qingci (documents for worshiping gods) and won the favor of Jiajing, so he became the chief minister of the cabinet. People at the time ridiculed him as the "Prime Minister Qingci". His power spread over both the government and the public, and all those who wanted to be popular and supportive came to seek refuge with him. More than 30 officials became his godsons. According to records in a book by Qi Rushan, there was a Gongyuan in the capital of the Qing Dynasty for the Shuntian Prefecture Rural Examination. The Shuntian Prefecture Rural Examination was called "Bei Wei" and ranked first in the country's Rural Examination. The emperor attached great importance to it and all the examiners had the title of Shangshu. But the three characters "Zhigongtang" on the plaque in the main hall of this Gongyuan were written by Yan Hao. In such a majestic place where talented people are selected for the imperial court, hanging a plaque inscribed by a traitorous minister would make anyone feel uncomfortable. Emperor Qianlong wanted to replace it, so he ordered anyone in the court who could calligraphy to write these three characters. As an emperor who liked to dance with calligraphy, he also wrote it several times. However, he found that his imperial pen and other people's writings were not as good as Yan Hao, so he had to give up and still let the words "treacherous minister" hang high.
When Yan Song was in power, he cherished ancient calligraphy very much. According to historical records, Yan Hao killed two people in order to obtain the immortal work "Along the River During the Qingming Festival" by the famous Northern Song Dynasty painter Zhang Zeduan. During the Jiajing period, Yan Hao learned that this picture was in the hands of Yuanwailang Wang Zhenzhai, so he sent Wang Chan, the governor of Jimen, to purchase it. Wang Zhenzhai was afraid of Yan Hao's power and was reluctant to hand over the painting, so he found a famous artist to copy one and gave it to Yan Hao. Yan Hao didn't know it was fake. When he showed it off in public, he was discovered by the framer who had framed the painting before. Yan Hao was furious and immediately arrested Wang Zhenzhai for the crime of "deceiving the prime minister". Wang Zhenzhai found the original work in the hands of his uncle Lu Zhi, and Yan Hao used his power to obtain the original work from Lu Zhi. Poor Wang Zhenzhai finally died in prison. Wang Chan knows the inside story of Yan Hao's use of power to rob the authentic works. In the thirty-eighth year of Jiajing (1559), Yan Hao killed him and silenced him for "losing opportunity in running the army". Li Yu, a dramatist in the late Ming and early Qing dynasties, wrote the legend "A Handful of Snow" based on this historical fact and put it on the drama stage. Later, Yan Hao gradually fell out of favor, his son was beheaded, his mansion was confiscated, and "Along the River During the Qingming Festival" was once again included in the palace. Yan Hao formed a clique for personal gain, harmed loyal people, and eventually ended up depriving himself of his family status and all his family property. From his family property, he obtained more than 30,000 taels of gold and 2 million taels of silver, which was equivalent to the country's total fiscal revenue for a year at that time. In addition, there are millions of acres of farmland, more than 6,000 houses, as well as countless rare antiques, calligraphy and paintings by celebrities. Why does the saying “Words are like people” so often fall short? Yan Song's aggrieved words before his death explained this error. He wrote, "I will serve the country with loyalty throughout my life, and I will follow people's opinions when I die." Until his death, he still believed that he was a loyal minister and a gentleman with great righteousness.