[terrywilcox]

When Reed Richards prevents Galactus from consuming Earth, he's really screwing up the natural order of things. The jerk.

[Vaskivo]

Richards, in fact, is interfering with the natural course of the universe. Galactus is a force of nature. He must exist for the universe to continue.

Richards intentions were selfish, but completely understandable and relatable.

[jdbernard]

But Humans and their actions are also a part of the natural course of the universe, so Richards was just acting according to the natural drive for survival of himself and his species.