Let me make a few comments, though.
"Now I am a very suspicious man. I really don't believe most people are very inventive. What I am saying is that I think that anytime you hear a story, the story is based on real events. Oh, the story may be very distorted and translations over the years may lead to something very different from what happened but none the less, something happened."
Have you ever visited the fiction section at a library? :) Movies like "The Matrix" or books like "The Lord of the Rings" are just as creative if not more creative then the typical myth. Hell, Tolkien created an entire pantheon of gods for his story and put the whole history of creation in "The Silmarillion" as a SUPPLEMENT to The Lord of the Rings. The creation story of the Silmarrilion is just as detailed, creative, colorful, and wrong as any other one. I think you underestimate humans' abilities to entertain.
Your idea of a group of mortal gods not astoundingly superior to humanity is interesting. One could even make the argument that they were extraterrestrials and we were their biological experiments. (See: At The Mountains of Madness by H.P. Lovecraft.) One could make the argument that all life on this planet descended from that alien life. (See: The X-Files, The Sixth Extinction.) One could make these arguments, but it seems some authors and entertainers beat me to the punch.