At the top you have folks with $30m in salary and $30m in endorsements. Even if they lose all endorsements (and they won't), there's still $30m in salary left. Average stars make $5m/year for 5 years. That's certainly enough money for a lifetime of pretty good living. These are the folks who can afford to take a stand, is what OP means. In contrast, if the average office worker takes a stand and loses their $60k/year job, life would be really difficult for them.
Quick google search for NBA stars' pay: https://www.shmoop.com/careers/basketball-player/salary.html
At the top you have folks with $30m in salary and $30m in endorsements. Even if they lose all endorsements (and they won't), there's still $30m in salary left. Average stars make $5m/year for 5 years. That's certainly enough money for a lifetime of pretty good living. These are the folks who can afford to take a stand, is what OP means. In contrast, if the average office worker takes a stand and loses their $60k/year job, life would be really difficult for them.