I suspect that the people who enjoy the blood sport are disproportionately drawn to the kind of places that loudly proclaim "no politics" or "we're all equal" without having the proper defenses in place.

Or perhaps, more accurately, they're drawn to places without defenses: both those that are pretend egalitarian but have informal power hierarchies without accountability; as well as those that outright say "we're in it for the game", like the stereotypical high-pressure investment bank.