Well, yes. Because otherwise it's just a bunch of rich people patting each other on the back. It's the Academy's choice (and Smith was a member) that they wanted to sell/profit from the event, and one way to make it less distasteful to the less privileged is to knock the celebrities down a peg.
Yep, they are entertainers and yep, the lines between entertainment and exploitation/abuse can be thin.
But they are not near the line. They are not victims. They are willing, paid participants. The idea is if they let someone insult them, they'll make money.
I'm unconvinced that she has a anything worthy of being called a "condition". Moreover, Rock was apparently genuinely unaware of the implied condition. That makes it at worst an accidental injury. Worthy, perhaps, of an apology.
It's difficult to see how it could affect her career, but she always has the option to sue.
You've missed your own point:
1. She was public about it, but:
2. Rock apparently didn't know and assumed it was for fashion (and therefore not insulting a medical condition).
How much am I going to get paid for it? I can take a lot of insults if I'm making a lot of money from it.