Guilty of what? Even if I accept the premise that sex work is categorically immoral, which is an interesting position and maybe even the right one for society.

Guilty of what? Even if I accept the premise that sex work is categorically immoral, which is an interesting position and maybe even the right one for society. The situation that Minsky found himself in was not one where he knew that Virginia was a sex worker nor one where he was paying her or having her paid by proxy. The situation was one where he was approached by her and she acted interested in him. I suppose you could argue that he is morally guilty of sex outside the marriage or cheating(don't know if he was married or not).