Judging from the change of Guo Sheng's attitude towards foxes, what kind of person is he?

In Pu Songling's Strange Tales from a Lonely Studio Guo Sheng, we can see from the change of Guo Sheng's attitude towards foxes before and after:

Guo Sheng is a lower-class scholar who knows how to seek advantages and avoid disadvantages, but lacks self-determination and is short-sighted, and has to give in to the status quo and desire for fame, which is also a true portrayal of most lower-class intellectuals at that time.