To this, I would add that it's difficult to determine when this has taken place. Often it's a case of "he-said she-said," unless the harasser manages to leave evidence (or in this particular case, "he-said he-said").

The large potential financial payoff from a successful lawsuit gives the accuser a motive to lie or misremember.

Also, people are notoriously bad about communicating with each other about relationships. So it's possible that the accuser genuinely thought he was being coerced, when this was not actually the case. I.e. if he'd simply broken up with Mr. Rabois instead of filing a lawsuit, there might have been no work-related consequences whatsoever; but he didn't believe this.