Is it less impressive when rich guys win a big tournament?

I think if you are talking about a cash ring game, risking money wouldn't affect the rich...
But in a tourney, after the buy-in you aren't risking any additional money, its all just chips. So I don't see any advantage in a single tourney. I understand they could play in many more, so they may have more experience, but doesn't that still means they deserve credit for playing well.