Not to be argumentative, but clergy also have strict guidelines about appropriate conduct and in my denomination, we have to attend sexual ethics training every 4 years. And there is a lot of emphasis on keeping relationships safe for all parties, not just on staying out of the sack with people.

It is also similar in that there is often a one sided disclosure, and that people are often looking for a relationship. Of course it differs in that the clergy is not paid directly by the parishoner, but that can make it even murkier.