Welcome to FR Heliand.
It seems to me that the sexual problem in the RCC is one of same sex activity between adult priests and post pubescent boys. The issue you note with heterosexual sex among adults is not really a moral equivalent. Both are wrong, both are sinful but in the latter it is activity between two consenting adults. The former is abuse of a minor by an adult.
It "seems" that way, because that is what is reported in the MSM. In reality, there are a small minority of priests who had sex with grown and teenage women, and a seperate small minority of priests who had sex with grown and teenage boys. In other words, just like the general male population they are drawn from, some men who are priests have illict sex (adultery, fornication, sodomy, buggery, etc.). The same of course, goes for Protestant ministers as well. Unfortunately, there is no lack of examples of all kinds of deviance from all the Churches.