Why did Huashan School become so bad in the story of Eternal Dragon Slayer?

The root should be in * * *. As we all know, the head of Huashan is called Xianyutong. This is a small white face with a human face and an animal heart. He first abandoned a woman in a scenic spot and was poisoned by the golden silkworm method. Hu Qingniu, the imperial doctor, saved him, became sworn brothers with him and betrothed his sister to him, but he didn't want to repay his kindness, so he abandoned Hu Qingyang for the future and made her get pregnant early.

Imagine, under the leadership of such a beast, can Huashan's atmosphere be good? Not all flatterers, honest people simply can't survive in such an environment, so the rest of Huashan in the later period can only be social scum.

Of course, it can't be said that there are no good people, at least his two uncles are not wrong. After learning of Tong Gan's new bad things, they are going to take him back to blame and give him justice. It's just that when filming the movie "Eternal Dragon Slayer", in order to highlight the comedy effect, the director just demonized Huashan's parents' stupidity, greed and lust, so many people thought that the whole Huashan school was a bad person.