Authority, mostly. Despite what most people think (or, if we're being honest, fantasize), the majority of cases of nonce actions are not the results of someone pulling your kid off the street into a windowless, white van. It's someone with a level of unquestioned, unchallenged authority who are able to abuse their power. Teachers, religious figureheads, medical experts, and anyone else that can order people "beneath" them.
What is it with religious leaders and gay pederasty?
Authority, mostly. Despite what most people think (or, if we're being honest, fantasize), the majority of cases of nonce actions are not the results of someone pulling your kid off the street into a windowless, white van. It's someone with a level of unquestioned, unchallenged authority who are able to abuse their power. Teachers, religious figureheads, medical experts, and anyone else that can order people "beneath" them.
Joe Biden: "I tell you what, man, I got in the wrong line of work"
They're the only people who can possibly (in some universe) have the moral high ground on this issue. "It's different when we do it".