I think it can work either way, if done correctly. I'm with Jon in that I don't want to see the hero saved by other people 99% of the time. But once in a while? The hero being saved by the people is a nice way to show that the hero's mission is gaining traction and that they're inspiring others. Consider the scene in Spider-Man (the first one from 2000 or 2002 or whenever) where regular people start throwing bricks and cans at the Goblin, saving Parker's life. "You mess with one of us you mess with all of us." That was a fantastic scene and really carried some strong emotional resonance.
But it is a fine line. The hero is the hero, and they're the ones we root for and the ones we want to save the day, not the ones being saved. Now and again though? I like seeing the positive impact the hero has, and how the community can rally around them, putting their differences aside to, for a change, save the day.