I used to be a privacy advocate until I realized the futility of trying to thwart the data collectors. Our Information is everywhere whether we like it or not and the only way to avoid its aggregation is by not associating with the world and abandoning the convenience of modern technology. I feel like at some point we just have to accept the loss of privacy to gain better harmony within our communities.
I would recommend The Transparent Society by David Brin to anyone interested in this matter: https://en.wikipedia.org/wiki/The_Transparent_Society