I usually feel smarter after a few beers.
I don't think intelligence has much to do with it, and could possibly make things worse. We think we are rational beings. But the unvarnished truth is that we make emotional decisions and then use our intelligence to rationalize or justify those decisions.
Take for example, government. For the most part, these are the "elite". They are largely a group of lawyers(doctors in jurisprudence), doctors (not physicians), and otherwise highly educated. Yet they have totally gummed up (polite term) society with their politics.
A less polite way of saying it is that higher intelligence yields higher level fuck-ups that are just more difficult to explain.
I think that the general fear that super AI could take over the world is telling of our innate human sense that higher intelligence is dangerous.