If McQueen were to push forward and win in the final race (for example leaving The King crashed on the road) he would be betraying his “Innermost Desires” of being with Sally (as illustrated by his distracted fantasy before the final race). (Maybe. Could be a stretch).
This was my problem too. But then I remembered that the different elements don’t have to be neatly juxtaposed in a simplistic way. In other words, it’s not that you have to stop hindering and start helping. It’s that hindering in various forms is causing problems in the story. Helping in various forms will resolve the story. (Making this point for future readers – you obviously know this).
When I first saw it my now 15-year old son was 4, and the sheer joy he got from it made it the family favorite. But I have to admit I got bored rewatching it this morning. The fact that I’ve seen it so many times is part of it, but I do think there are probably other issues it has. Maybe points that could have been better illustrated.