I think it's probably more to do with the fact that the Vatican is an archaic institution that has failed to realize that the very core of humanity is change and adaption, and that clinging onto the 'old ways' is not only impossible, but certainly a case of looking at the past through rose-tinted glasses. About 100 years ago, beating your wife and children with a large wooden paddle was 'discipline', rather than assault. The world changes, and our perception of 'right' and 'wrong' is permanently changing with it, the whole idea of there being 'fixed' positions of right and wrong is a fallacy in the first place.
Basically, they realize that the only way to cling to power is to play on the lizard brain fears of people, because they promote a reaction without requiring input from the consciousness.