The reason is not complicated, because throughout the ages, although we have also studied the Disciple's Rules, the Holy Amethyst and other knowledge that teaches people to be kind, intellectual education under exam-oriented education has always been valued by most schools.
Seeing many crimes with high IQ, I feel that parents spend money and time to train their children, while the country trains talents, but they go astray, partly because of the lack of moral education.
At this point, I would rather the society is full of good ordinary people than the world is full of criminals with advanced knowledge.