I wonder... How many people who speak up about privacy concerns have a Google account? How many of them are logged on with the system reminding your session so that you can easily log back on again?
And then the real question: how many take action against websites which use Google analytics?
Obviously this is just one player. You can easily swap 'm out for the more popular social networks as well (Facebook, Twitter, etc.).
On one hand people are very concerned about privacy while on the other they also easily allow themselves to get tracked and monitored. It's not just the big bad government at work here.