The initial sin is the same, it is the reaction to the sin that is different. First, they canned the guy. Then, he had to deal with the authorities and is now in jail. He will get his day in court, pay his debt to society, and will end up as a registered sex offender for the rest of his life. No protecting the scumbag and shuffling him off to a retreat or sending him to another church and sweeping the whole thing under the rug.
This wouldn't happen if they let Baptist youth directors get married.
We had the same situation. It was difficult to tell if anything actually happened because the girl and her family were crazy but we let him go anyway. He got himself in a position where he couldn't defend himself (alone in a young girl's home).
We on the Protestant side have no hierarchical protection from our denominations (speaking for my own). So if we were to commit a felony, most of our congregations would send us down river to the appropriate authorities (which is a good thing). It seems to me, and I'm not Catholic-bashing here, that the RCC's vast network of world-wide communities would make it easier to just shuffle one bad-priest to some monastary in Italy instead of just canning him.