The metaphor does not take account AT ALL just how we are to weed out the good parents from the bad ones, and in practice, to state it tsutologically, those who seek power seek power. It was precisely to keep domineering and cruel fathers from gaining general influence anywhere that distributed system was constructed how it was.
If we imagine Communists as parents, they are domineering narcissists who not only do not want their children to develop, but who sctively seek to break their will so they become carbon copies of themselves. They beat their children severely, torture them psychologically, lock them in rooms all alone, and kill the ones who insist on retaining a personal sense of self.
On a lesser scale, consider Father Bllomberg: obesity is UP, not down. I predicted this. Adults can buy two smaller drinks rather than one larger. Thet can est more just to piss off their father.
No person lacking true empathy is fit to rule anyone.