I think the reason it it wears away at your value structure. You have to "sell" your mind (thus polluting your non-work day thinking) to a system that feels "wrong"

For lawyers, it's a clear meritocracy based on how much you can bleed. For doctors, a kind of "virtue" in the work that cancels out some of the stress/BS. For software, it can be like temporarily joining the popular circus that's in town (similar to a lot of meme crypto companies)