Deviation is the direct e
ffect of repression. If full expression of human emotional complexity was allowed the instance of moral deviance would be reduced. However the issue with this lies within the full range of human expression. Ultimately humans are predators; apex predators. This is something that society fails to acknowledge. If you lock up a tiger and force it into routine in an attempt to domesticate it, it will work. For a time. But eventually that tiger will snap, it will maul its "owners" for breaking an unwritten and unknown law of it's animal world. And no one will be surprised. Why then when you do the exact same thing to humans are you surprised with the results
And ultimately this is the reason for the "darkness" people talk about each person having. If expressed organically these predatory and violent acts would be reduced.