He's like most "visionaries". He thinks that the reason the world is a bad place because of evil and stupid people (he's right about that) and that he is somehow smarter and more virtuous than everyone else, so can fix everything and make their world conform to his shining utopian vision.
Some visionaries get it more right than wrong (Churchill springs to mind), and have enough humility, or at least pragmatism, to know that they need to work with others, and can't get everything. Most, however, are egotistical narcissists of varying intelligence, who mostly end up alienating everyone before they get into any position of real power. Unfortunately, occasionally through some quirk of fate one or two get through. Obama is one of them. Our PM is another.
You are lucky that Obama's gloss wore off about 5 minutes after he walked into the White House. If he keeps going the way he is, he'll piss off and burn out the majority of his support base before he accomplishes anything too drastic. Start hoping that he'll begin making really big policy pronouncements, like the abolition of Social Security and replacing it with a universal pension/unemployment benefit system. Or like some form of compulsory national service, where you can join the .mil, or go to form of civilian service corps. Something big and controversial, like his universal health care plan.
He's forgotten that politics is the art of the possible, or maybe has just bought his own spin and somehow thinks that he's different. I think that he'll be proved very wrong.