"unless we come up with honest answers about why such offenses happen in our society, and what can be done to prevent them"

More specifically, why these happen in The RC church, (rather than watering it down to society) and why the RC organization has failed to deal with it in a meaningful way?

I suspect more energies have been directed on attempts to minimize the impact on the brand "the church and the central organization" than on compassion towards the abused than on actual change. It is predictible to put the blame on the victim, rather than focus on the source of the problem (which I suspect has not gone away on its own, but is merely in remission).