Why do most of our country’s classical novels use scholars as protagonists?

In the first year of Emperor Wu’s founding (140 BC), Dong Zhongshu proposed in the Countermeasures for Promoting Virtues: “Anyone who is not in the six arts and the art of Confucius should not let them advance in parallel.” In the same year, Emperor Wu adopted the advice of Prime Minister Wei Wan and deposed the virtuous "Zhi Shen, Shang, Han Fei, Su Qin, and Zhang Yi Zhi Yan". Wei Wan did not directly criticize Huang Lao's remarks, but Empress Dowager Dou (the grandmother of Emperor Wu), who was fond of Huang Lao, still strongly opposed it and imprisoned Zhao Wan, the imperial censor, and Wang Zang, the doctor's order, who advocated Confucianism. Although the power of Confucianism was temporarily hit, in the fifth year of Jianyuan (136 BC), Emperor Wu appointed Doctors of the Five Classics, and Confucian classics became more complete in the government.

In the sixth year of Jianyuan (135 BC), Empress Dowager Dou died, and Emperor Wu appointed Tian Fu, who was good at Confucianism, as his prime minister. Tian Fu dismissed all Dr. Taichang who did not treat the Five Classics of Confucianism, excluded Huang Lao Xingming and hundreds of schools of thought from official studies, and recruited hundreds of Confucian scholars with courtesy. This is the famous saying of "deposing hundreds of schools of thought and respecting Confucianism alone." After Confucianism was solemnly respected, officials mainly came from Confucian scholars. Confucianism gradually developed and became the feudal orthodox scholar who ruled the people for the next two thousand years and became the most orthodox profession in China.