As already said above It makes no difference to the individual being married or selebate male or female making them attracted to young children, They are just bad sick people that have wangled themselfs into a trusted institution.
I don't think putting women in as the "safer bet" would be the cure for this problem, although a mixed gender policy holding the position has other benifits.

Steps to cure this problem IMO should be-

Much better vetting of anyone put in a postion of power and responsibility with Children?

A easy to access healther system of reporting fears/situations/acts for children were they 100% confident to talk about any fears etc. And an sutible support system to listen and follow them up.
Reports of individuals having commited acts and just being moved to another parish make my blood boil?

A much much much harsher punishment for individuals? (Which I should probably not write my ideas on this, but it envolves petrol and a match)