There are so many jobs with higher risk of injury. And most don't pay $250k to work 2 or 3 times a week for 3 hours
There are certainly harder and less rewarding jobs than that, but why make an ignorant comment like that?
It's like stating the players own their salary by playing a game every few days for some months, or that coaches get paid to stand around and watch others play hockey. That's just not how this works at all.
Refs have to travel a lot, they have to train a lot, at an age at which it is much harder to keep up than for players, and their game day sure as heck doesn't revolve around being there when the game starts and leaving when it ends. They also have to do a ton of reports, meetings and league-internal camps.
It's always funny when people who have zero idea what the life of a ref is like pretend they can judge how hard that job is...