Probably not. I don't have a very absolutist perspective on these privacy issues, but I do think that I should probably be taking my advertising business elsewhere (if anywhere at all), and that I should probably find a way to limit the amount of my data they gobble up. I'm lazy and I would prefer something that works to something which keeps all my information safe, which is why I'm still using gmail even though I'm creeped out.
Arguably, the easiest way to contend with this would be to send Gmail users a private link with the text of your communication. Or encrypting the text.