Those without official positions see officials as corrupt and wish to kill them all; once they become officials themselves, they are more greedy than anyone else.
It's the same with the Noble Family.
Even a millennia-old Noble Family is not in a constant state.
During times of prosperity, they look to the heavens with their feet on the ground, and see people through their nostrils.
When the family declines and society deteriorates, they hide away, crouch low, and humble themselves for a better tomorrow.
The most powerful Noble Family at the end of the Eastern Han dynasty was the Yuan Family of four generations and three high-ranking officials; their fate afterwards needs no elaboration.
In contrast, the Zhuge Family, with three brothers loyally serving Wei, Shu, and Wu, were wholeheartedly devoted to their country.
As ordinary people would say, don't put all your eggs in one basket.