I don't feel bad for Avery Bradley, but that's not because he makes a lot of money. It's because I don't have a clue what to feel bad about. As far as you or I know, he's as happy as a clam.
I can feel bad for rich people. But since I don't have any knowledge of Avery's misery, I have no reason to feel bad for him. I'd guess that adjusting to new teams and new cities is an inconvenience -- not really worthy of sympathy.