A paedophile is likely to be drawn to the catholic church where they can get access to vulnerable children in the name of doing gods work. It is a well- known fact that paedophillia is rampant in the higher ordere of the catholic church, so it makes sense that the men in these positions of power might support other paedophiles on their way up in the heirarchy, in order to protect themselves and each other and get away with their depravities. Like supports like. Women are kept out of the heirarchy as well which aids in the cover-up. It's an organised network, a boys club for paedophiles, a perfect arrangement.
What has the 'punishment' traditionally been? To transfer culprits to a different parish. Clearly the church supports paedophillia. It won't change until the paedophillia is removed from the higher order who have all the control.