On the dark side: The fear factor
Nations once feared to oppose Soviet might. Today they fear opposing Islamic might. They fear opposing terrorism. They fear opposing Iraq. So George W. Bush had to try to shame the United Nations into doing so.
Which makes him contemptible to them. For he exposes their cowardice. Every day that he shows no fear, he highlights theirs.
Evil always seems more formidable than does good. Some even scoff at the very notion of its existence, subconsciously preempting accusations that they might be enabling or siding with any such thing. If one doesn't delineate the world in terms of good and evil, one never has to admit that he is supporting the wrong camp, or why. Fear is masked, and the hunt to collect moral justification for one's position commences.