So declaring that you are doing evil things makes you not evil? What a bizarre logic.
What is evil? The dictionary defines it as "profoundly immoral or wicked". It also states that morals are "concerned with or derived from the code of behaviour that is considered right or acceptable in a particular society".
So, as a society, do we consider it right or acceptable for a this private information to be collected and utilised in this way? If we deem it unacceptable (which I personally do, but I don't speak for society), then google is evil - along with all those others doing the same thing.