> When Google has your data, Google's business partners have it too (part or parcel),
All evidence I've seen, and common sense, indicates that the data is very valuable to Google and they don't want anyone else to have it. They'll sell ads to other companies, which Google displays based on the data, but they don't sell the data. That would be giving the other company the goose that lays the golden eggs. Google prefers to sell the eggs, over and over again. If you have any evidence to the contrary, please cite it.
Of course the NSA illegally acquires data from most all email providers, ISPs, etc. Even the services that are explicitly based in privacy get NSLs, so to avoid that I could avoid using the internet at all. I'm going to use the internet, so the NSA will be able to snoop until that problem is handled using the three boxes - soap box, ballot box, and if absolutely necessary ammo box.