I don't think that's the case at all. There were some potential concerns about the gmail offering that it would target ads based on the content of your emails, but that was done algorithmically, not by handing out the content of your emails. I think the main concern people have with Google is that it is a nearly omnipresent monopoly, with the potential to do bad. They haven't yet, but they have the potential. Good thing their company motto is "don't do evil."