Comment by hglman

Exactly that, as long as you have those who have access and those that don't you have something to be exploited. There you move towards a great divided in power, towards total lack of privacy or you don't gather the data. I think the later is actually the least likely. There are a lot of really powerful things you can do with good data, that seems worthwhile. The issue is then exploitation of that knowledge. For sure advantage will be had by someone, question is extent of imbalance and lack of privacy.