Point taken, it's not only an emotional reaction; I get that context based ads aren't the same as someone reading my email. I was really just making light of what is an obvious contradiction in my values. We would be naive to think that all google is doing is spam filtering and context-based ads. They are also giving up personal info thousands of times a year at government request, etc.

The main thing is not owning my own data. Google owns my data and I am powerless, more or less, against them. When other companies own data I get all indignant about it; but rationalize it when it's Google.