says who?
If anything priesthood is statistically protective against pedophilia, even without accounting for "professions with access".
If I remember, last time I read the literature on the topic, it was quoted as something like 0.2%? As opposed to, say, teachers, which came at a scary 8%, and against a background population level of about 1-2%.
The scandal was about the "handling" of these cases, not about their presumed overwhelming propensity compared to "normal people". So your theory about repressed urges and the like is effectively Bulverism.
Obviously you'd be forgiven for having that impression though. This kind of stuff os golddust for the media. All they have to do is match pedophilia articles with articles about catholics on the front page, and boom -- fact by association.