Privacy vs Privacy. In this case I'm talking less about the accessibility of the information by masses and more about the acquisition of that data and the monetization thereof. I believe firmly in the right of the individual to control the relevant secure aspects of data (Confidentiality and Availability, integrity gets a back seat for a rare case). When an organization takes that data and utilizes it, it's a breach of the desired confidentiality of the data. It doesn't matter if the data is read it matters who is doing so and for what purpose.
Something akin to a non-commercial open source license. I don't care much what individuals know my stuff, I do care what organizations know and do with it.