I know in my church this subject came up for whatever reason and our Pastor said that when individuals want to take leadership positions but are known to be carrying on in sinful ways he sits down and tells them they can't have that position and they need to be willing to change whatever the behaviour is. He says sometimes it goes well but at other times the individual chooses to leave the church. It doesn't happen often he said, but it does happen. So I think committing adultery with no remorse might fit such a category!