Only vaguely relatedly, there's a short story out there somewhere where the punch-line is that the normative forces of magic reincarnate the man who'd horribly abused his own prepubescent daughter as his own prepubescent daughter.

Which, when looked at through the normative model you invoke here, creates an Epimenidesian version of the same deal: if abusing a vicious pedophile is not vicious, then presumably the man is not vicious, since it turns out his daughter was a vicious pedophile... but of course, if he's not vicious, then it turns out his daughter wasn't a vicious pedophile, so he is vicious... at which point all the Star Trek robots' heads explode.

For my own part, I reject the premise that abusing a vicious pedophile is not vicious. There are, of course, other ways out.