Dick Gregory was a great comedian who went and got arrested, did hunger strikes, protests. It never hurt his career to be outspoken.
There have been many matches where a wrestler gets hurt. The referee usually senses it and stops the match, but the referee doesn't always know.
The big difference lies in the pay cheque and the billing in the credits. I have been voicing for a decade, and if you don't get good billing, it does hurt.