There seems to be a great deal of misunderstanding over what's actually going on here, probably because of the OP's original comments and description. Look over the story once more. This is what happened: the parents of the high school graduate who was "with" the Priest caught the two of them having sex on camera, they told the Dioceses about the issue, the Diocese has filed paperwork to have the Priest defrocked for his actions. They are sending the request off to the next level to have it processed. The Vatican has the final say on the issue and has yet to weigh in (they're getting the documents shortly), the Vatican has not done anything yet either positive or negative.
It's prejudicial to assume that they will do nothing just as it's factually incorrect to applaud the Vatican's response that they have not given yet. Wait for the facts to come in, then reward kudos or express scorn, but nothing has happened yet to even judge. Doing so now is merely an expression of your own personal bias.
I don't think it's fair to judge the church because of this guy's actions either. If he did engage in sex with her while she was a student at the school he was in charge of, that's definitely wrong, but you can't hold the church responsible for what he did unless they refuse to punish him for it or they were somehow complicit. The evidence thus far does not suggest yet, in fact it suggests the opposite (at least as far as complicity goes).