I find it fascinating that through the business lens, Google is competing with Facebook to sell more ads by going into low earth orbit. We didn't get flying cars like they promised in the Jetsons, but that sounds pretty futuristic.
There seems to be plenty of evidence that Google's top leadership is more focused on finding alternate revenue streams that just "selling ads".
Why not:
More ads -> more $$ -> more information -> more organization -> more people online (and, thus, more freedom, more intelligence, etc.)
By the same token, you're a machine that transforms food and oxygen into excrement and CO2. That puts it harshly, but it's entirely what this is about - if you judge things at that level.
What I mean is - selling ads is what keeps their "corporate metabolism" going, but the actual long-term goals of the founders might be (and, indeed, are) very different from that most basic of all levels.