Are you saying Google's using this for gain, or for any reason? Is there any evidence whatsoever to suggest that this data has ever been accessed by a Google employee ever, for any purpose whatsoever?
Slight tangent, but the difference between "can" and "does" is a vast one I don't think people are getting, with all these privacy issues coming about these days. Here's a scary thought: any person who owns a gun/car/knife/taser/baseball bat can kill someone else with it. They could do it.
Unless it "does" happen, and there's evidence that it happened, they don't get in trouble.
What Google can do is almost endless. What it does do is what matters.