maybe...
also, maybe we are just a different being from them, created from the same 'source' they were, not BY them, and they know we are here and they are curious about us.
also, to really boggle your mind a little bit, if you know about 'worm holes' OR 'traveling faster than the speed of light', you know they are both ways to travel back in time. what if the "superintelligent beings" you are referring to are us, or rather descendants of us, maybe hundreds of thousands, or millions, or billions of years in the future, and they traveled back in time to where we are now?
and who knows, maybe we are the only beings in the entire universe, and then maybe even we were created by a god.