An excellent interview with Marc Newson from HBR.
"... A lot of what drives us is a sense of dissatisfaction. “Anger” is probably too strong a word. But if we were happy with the way everything was, we wouldn’t have anything to do. You don’t have to look very far to realize that things could be a lot better, and the reason they aren’t is because no one has thought about it enough, or they’ve thought about it and just done it really badly."