Well, racing for position is all well and good, but the Williams was quicker, and I think most fans thought that Ralf would have at least had a go at it. Perhaps he knew that Michael would probably have "aggressively defended" his position!
I think if Juan had been in Ralf's position at the end, he would have been much more aggressive in attempting to overtake Michael. As for passing Button, I think he just ran out of laps, I think he would have needed only 1 more to do it.
One thing we HAVE learned from this race, and that is the F2002 is very quick indeed.