While i understand the theory behind why I wouldn't want somebody looking into every search I do on my computer, I can honestly say that with years of using Google, social media and such I haven't had any bad experiences stemming from an internet search.
Some people say it's wrong that somebody can look you up on Facebook and get your info. On the other hand, they can look you up via a phone number lookup and find out where you live too. They can see what you have rented at the video store, they can see what you have signed out at the library, etc.
I find I simply don't have enough anxiety cycles to worry about all of the things which could happen, I have to focus mainly on the ones which are happening.