So dealing drugs, blackmail, bullying, prostitution not enough?
sacrosanct, but context makes all the difference in the world.
If I'm watching The Sopranos, it's not the same thing as if I'm watching Friends...
Quinn is a petty criminal in a context where the MC, theoretically the hero of the story, humiliates others or is humiliated by others, for trivial reasons (which are aggravating compared to doing it for profit) accepts without problems to break into other people's property, damage it, steal, assault public officials, drink (in itself against the law) in a dangerous and reckless way, revenge porn etc etc...
the list Quinn gives to Maya is a terrible violence, but we know it's an exception, the one given to Derek and MC is much worse but doesn't raise any ethical issues to any of the characters involved (and apparently not to any players either)
in a war movie it's not enough to shoot to be the bad guy, in a college where almost everyone uses drugs it's not enough to deal.