But it does matter that the gods are man-made. It's the difference between an universe that has a natural order and one that has not. People look for divine beings in order to find some sort of absolute moral guidance, and though Eora's gods superficially satisfy that need, their guidance is anything but absolute. They personas are as partial as their creators and their values are merely a fallible attempt to bring order to world whose only inherent truth is chaos.
In essence, realizing that the gods are artificial equals realizing that there is no moral authority greater than man itself. It equals realizing that even though there may be beings more powerful, they have no higher claim to "being right" as you or the next person. They are on the same level. The only level there is. I imagine that knowledge may very well make a difference to the outlook of many people.
