I can list for you what I think are the causes of this off the top of my head in my sleep. You can too, I bet. But let's look beneath the surface. Something's got to give, I always say. Start by making pederasty acceptable by naming it using a synonym for 'merriment', and end at the state of confusion, where pedophilia is in the public's mind disassociated from 'merry', but we just don't know and can't say what it is. Well, back to 'gaiety' and cluelessness...
The only society that can afford a social contract is a society where there exists the rule of law, things are predictable, and things are more or less run according to reason rather than by fear. The social contract is the first victim of totalitarian regimes because no one can afford to think in social ways -- everyone scams "the system" and one-another just to survive. This truly is the nihilist ideal (if nihilists can be said to have "ideals") of turning everything into a zero-sum game. As a society becomes less free people will act more like animals. Animals in cages but still animals.