Every religion and its god tries to make people believe the ones who don’t believe in it are going to be punished. In other words believing in that religion and that god is more important than your actions and how you treat others. Saved by belief, not by works.
That’s not logical nor justice so it very likely doesn’t work that way in the real universe.
How it really works will make perfect sense. So if it doesn’t make sense, it won’t be what really happens.