And that's the real incentive, isn't it? It's not so much the fact that you get to bask in their God's love that's the selling point, it's that you avoid damnation. Think of it like Coke putting out an ad that says 'Snapple causes muscle spasms, Pepsi is infected with AIDS, and tap-water gives you cancer. So drink Coke. Not only do we taste good, we're the only alternative to pain and suffering.' It's actually a pretty good marketing tool. Humanity, by nature, is an ambivalent animal, given to fits of inertia, and we're more than likely to sit on our noncommittal behinds unless there's a bogeyman to chase us out of our chairs.