Bush is morally a universalist. For instance, he says the freedom is good, the same thing is good, all over the world. So in that sense he's a universalist.
If you can write a character who is attractive but morally reprehensible, then you've got a character. It's got to feel like people I know and it doesn't just become a bag of tricks.
There's an appeal to the American sense of exceptionalism, that we're morally superior, as way to not be self-critical. I think that's a bit dangerous.