Alan: Some crimes must be remarked.
This is one of them.
Although I was raised in a Christian tradition that posited a real devil "out there" who actively tempted -- and sometimes possessed -- people, I am increasingly of the opinion that almost all evil is, as the ancient Greeks posited, attributable to "the absence of good."
Unless people are educated to "have a life" (or otherwise discover some creative outlet) the drive to fill the void of emptiness with destructive "drama" becomes unusually strong.
Physics tells us that one of the strongest physical forces is that of a void seeking to be filled.
So too with meta-physics.