Their stated goal should be despised and pariahed, and yet they are proud. This is the problem with Google, Facebook, and now Instagram. There is absolutely no separation of content from ads, and they do exactly as much as law will permit.
I've been deeply disappointed in all of the spam coming out of Google these days - they flood inboxes with spam from Google Play and other services, and it's a travesty for the brand. It's a little funny to watch the GMail team fighting the spam hydra, within Google itself.