I honestly see this as unavoidable. There are important problems to be solved that need more data and constant monitoring.
Want to have early warning about diseases and their spread (extremely important as we're entering the age of garage biotech)? We need more data about people, their movements and health, preferably realtime.
Want to have better weather prediction? More data.
Want to have better disaster relief? More data, more monitoring, as real-time as possible.
Want to turn social sciences into some kind of actual hard-ish science? More tracking, more data.
There are absolutely enormous benefits we could get from constant gathering and processing of data about people. There are tons of security issues here which are of course important and need to be talked about, but it seems to me that this is the only thing people are talking about now, and no one is noticing that we could use this data to further improve our lives.
While threats to one's safety are real and have to be adressed, I'm starting to believe that the notion of "privacy" as is currently understood needs to go, if we want to enjoy the continued progress of mankind.
Someone wrote somewhere downthread that society is based on trust. I think it should be based on "I trust you won't harm me with what you see" kind of trust, rather than "I trust you don't look at me even though you can" kind.