Most places that it's shown up are workplaces with powerful, almost untouchable figures (a TV star or a 'rockstar programmer' or a CEO or an elected representative, or, of course, a priest, going back a bit further), and defective or non-existent HR. I suspect it's less common in more normally-functioning workplaces, simply because people would feel safer in complaining to HR, and special accommodations for the predator would be less likely to be made.
Also, of course, it was not exactly advertised that this was going on.