How about a character disorder?
Slick Willie definitely has a character disorder where he takes no responsibility whatsoever for anything, engages in behavior regardless of the damage he causes others, etc.
We might also consider that children do not get enough sleep these days and are overstimulated in daycare. Of the two, I would say that lack of sleep is a factor in the ADD/ADHD equation.
Another factor is the disconnect between what a kids wear to school and how they are supposed to behave. When there was a dress code even in public schools little boys wore dress shirts and ties, dress pants and dress shoes. Since they dressed for a structured environment, they behaved accordingly. What is a kid to think or do if he’s put in play clothes and then told to sit still? He’s going to go with the idea that he’s on the playground and act accordingly.