Why do bosses like to treat employees as fools? Why?

You ask questions, and there is no standard answer. You mentioned why the boss likes to treat employees as fools, which is determined by people's mentality. As a boss, he thinks he founded a business (company), registered a unit with his own investment, and recruited some employees. He thinks that the IQ of the employees recruited into the unit is lower than that of him, and that he can win a lot of money in the market, so there is no smarter person in the unit, just thinking that he can sign contracts from the market and earn income. If an employee is just hired to work, there is no such thing as his ability. This is the heart of all small bosses.