Confucianism calls medical skill "benevolence". Why did the ancients emphasize "the benevolence of doctors"?

Because China has always attached great importance to the morality of medical practitioners in ancient times.

The so-called doctor's benevolence means that all doctors should have a kind, just and compassionate heart, need to care about the whole world, be considerate of others, be kind-hearted, strive for perfection and save lives. China has always attached great importance to the morality of medical practitioners in ancient times, and proposed that medicine should pay attention to people themselves and require doctors to have noble moral sentiments.

The so-called benevolence of doctors means that all doctors should have a kind, just and compassionate heart.