I can see where the culture of celibacy breeds suppressed desire that manifests itself in a higher than normal perp rate. However, other organizations such as schools, protestant churches, youth organizations (sports and boy scouts) and hospitals among others have this problem.
In some ways, this is the same church that calls for the USA to abolish the death penalty. Christians are taught to turn the other cheek and that God will forgive anyone that simply asks. This mindset is not fully understood by outsiders. Remember these are a class of men that hear virtually everything in confession and absolve the sin on behalf of God and pronounce pennance (usually prayers but often times corrective action). They are trained to forgive. In keeping with the rest of western culture at the time, it was probably assumed that if the abuser was removed that the abused would simply move on without damage.
That all being said, the priesthood's reaction has forever tainted the faithful. I sincerely believe that the church needs to allow marriage in some fashion. Perhaps permitting priests to marry nuns or requiring some type of direct committal to the church by the spouse would be a solution.
God grant me
The Serenity to accept the things I cannot change,
The Courage to change the things I can,
And the Wisdom to know the difference.