There's no accountability either on a liability - legal, prison - level or a personal duty to make sure you Do The Right Thing (when, of course, you have a family to feed)
Behavior like what some of the tech giants do (and I don't crusade against "big tech" but individual cases are ridiculous) wouldn't be justified if you, like, wrote it down on a piece of paper and showed it to them, but they get away with it because you can just ignore all feedback, you don't have to actually answer support tickets from a distance of potentially hundreds of miles away (if you acted like that to my face, well, you wouldn't dare)
Some are worse than others; some legitimately just do not care how much evil they're pumping out into the world (https://news.ycombinator.com/item?id=1692122 https://news.ycombinator.com/item?id=42651178)