Truth of the matter is a lot of fathers suck. Two reasons I think. 1. They never get a chance to bond with the kids cause they're working 2. They lose their wife/mommy and this enrages them because they never want to acknowledge that they need the wife/mommy in the first place.
As for Einstein, I actually read a funny anecdote in last week's New Yorker about him: When he was 2 1/2 his baby sister was born. His parents brought her home and showed her to him; his comment was "Yes, And does it have wheels?"
[WS:] Simon Baron-Cohen http://en.wikipedia.org/wiki/Simon_Baron-Cohen argues that males are naturally devoid of empathy, the more so the more system-oriented their brains are. That would explain emotional assholism of great luminaries like Marx or Einstein.
Wojtek