wealth is something that is pretty liquid. it comes n go, comes n go. for me its about how much jerk a guy could be when they have money (power), or when they are moneyless. if they are financial sound/stable, and still fail to differentiate between humans and animals and treat everyone similar then it reveals their weak character.
it also shows that if they ever get laid-off from their job, they would freak out and lose all the hope and go into deep depression.