I wanted to add on the list of privacy invading examples. It's better I make the counter claim.

The data collected has massive potential to improve medical research. Being able to validate database wide experiments on hundreds of millions of people at once is pretty incredible. There's likely to be a decade of insights to be found in this rapidly filling digital ocean of information.

In several years the clamour to get off the known web will empower a lot of security apps (not "privacy" apps, that are the opposite of their name) that are growing behind the scenes.