If your salary is high enough that you can save some money then you aren’t required to put up with bullshit in order to keep eating food.
If so, maybe you’ve hit on a kernel of truth: we can’t risk paying teachers enough that they’d have the financial security to leave a bad work situation.
So when the workers have not other options, working conditions can stay low?
(I'm all for financially rewarding good teachers, but because their work is incredibly valuable. It's just ab incredibly hard context in which to separate the good and the bad without creating perverse incentives)