Ake, you might find these interesting:

A Brief History of Celibacy in the Roman Catholic Church

The History of Catholic Celibacy

As they say, if you want to know what's going on, just follow the money..

The celibacy rule itself has nowadays become a part of a generally unhealthy attitude to sex within the Catholic Church which is all to do with planting guilt in the minds of their followers as a means of control and manipulation. Only the Church can alleviate that guilt, of course, making people falsely psychologically dependant. Its success is varied but its effect is horribly obvious, certainly to any observant outsider.

I agree completely that the celibacy rule needs to be scrapped, but it's the rule that does the damage, not the celibacy. None of the sexual abusers are celibate, after all, or appear to have ever intended to be. I seriously doubt whether any cleric is literally celibate, though I admit finding out would be somewhat impossible, which is only one of many reasons why it's such a daft rule, except for the financial angle.