I think the morality clause is the key and the fact that the other person is a superior. It's an imbalance of power and can open the door to liability. Boards usually don't like that sort of thing. That aside, they are definitely two adults and what they do in their private life shouldn't matter too much. It does kind of show a lack of judgement and people might wonder how far that deficit stretches.
RE: WTF: Cheater Overexposed