Is Dayu honest?

It's clean, otherwise he can control the flood so quickly? If it were someone else, I'm afraid he would have swallowed up all the money (according to historical records, most of the high-level people next to Shun are guys with average ability and moral corruption).

Dayu "usurped the throne" for a reason (this is a saying): after all, Dayu prefers to use an iron fist, while the old man Shun only stresses benevolence and righteousness. If he couldn't clear Shun's obstacles, the Central Plains wouldn't settle down so quickly.

It's easier for Dayu to pass on the throne to his son: he knows that Qi has the same temper as him, and the heir Boyi is just like Shun! In order to ensure that the country will not die at the hands of a "benevolent man" (many tribes have been bitter for a long time under his rule, otherwise there will be no poor rebellion after Qi acceded to the throne), he must have commanded Qi to find a chance to kill Boyi before his death. That's why "Home in the World" has been circulated for more than 4,000 years.