I'm not suggesting that they pay you less and pocket the difference; if it was bad, that would be reason alone to leave. Instead I'm suggesting that there are

I'm not suggesting that they pay you less and pocket the difference; if it was bad, that would be reason alone to leave. Instead I'm suggesting that there are reasons to stay at one job instead of automatically changing to another, better paying one, and that people are not being foolish by remaining at the lower-paying one. This happens all the time when people are working on a startup, for example.