meninlove said alpha, I think you invest too much power in the parents. Some very good parents end up with a sociopath in their brood. I think the media, laws (or lack thereof), peer pressure (it's cool to be a bully) etc all play a hand in raising a child.
I'll give you that.
When I was a kid and went awry as late as 4th grade, I recall being sent to the principal's office - where I was made to wait in dread anricipation for Mr. Rumsfeld (no relation to the former SECDEF) who in my memory was a giant of a human above most other adults, with a wooden paddle to warm my behind.
Needless to say, I did not ever repeat that particular behaviour a second time!
While this event was some time in the early 1980s, public schools today in the USA have no legal standing to so discipline unruly children.
Parents will excuse bad behaviour and mollycoddle selfishness and resort to the electronic babysitter - the TV set - which is no wise provider of sound moral instruction for how to regard others as important (if not more so) than self.
IMHO, bad parenting should be held to an account, and perhaps the 39 strokes laid to their backs, as well as a rod of correction for the rebellious child.
And while I detest onerous "hate crimes" legislation that becomes part of the legal miasma of forcing political correctness only for the sake of preventing litigation, yes... some laws do need to be put on the books to address the causes of bullying.