To Do Nothing Is Also An Option

Question for today:

Why does The Sentry save the day?

When he does, he knows that those lives which didn't end because of his actions, will be taken somewhere else by his other half, The Void. He saves 300 people in an earthquake, Void takes 300 lives somewhere else. Throwing The Void into the Sun at the end of the last mini-series was only a stopgap solution, right? He's just giving the Void an opportunity to wipe out an entire a country when he returns, isn't he? {Having looked at Wikipedia, The Sentry apparently told the Void he can balance himself now, but what does that mean? He's going to do the evil himself? he's going to stick to doing small good deeds that won't have large repercussions? Cripes, here come the Sentry-induced headaches again}

Has it been discussed how Sentry justifies doing the hero bit currently, knowing what he does? It's one thing to be Spider-Man on patrol, and turn right and save a person leaping from a burning building, when he could have turned left, a saved a mugging victim from getting shot. It's quite another to save a person, knowing that your other half is going to kill someone precisely because you intervened and prevented the death of some person. I suppose that's part of The Sentry's metatextual aspect.

Really though, it's not Bob Reynolds fault (is the Sentry still Bob Reynolds? Or is The Void Bob Reynolds? Man, I could not follow 70% of that last mini-series). Captain America and Iron Man were the guys who just had to track down Bob Reynolds, and they just had to make him part of the New Avengers, which leaves ole Bobby in the position of having to help the save the world, or else he's letting down the Sentinel of Liberty. And how many people can do that?

Hmm, I've just had a horrible vision. Earth being attacked by the Annihilation Wave, Hulk, The Void and Onslaught (listed in the order of the potential threat as I perceive it. Any force which currently has Galactus as weapon sits at the top) simultaneously. That would be ugly, though it would be the perfect time for a massive "reset" event, if The Powers That Be were to deem one necessary.