What gets me is that if the data were actually used in a meaningful way, it could be revolutionary for people. If companies actually correlated things like sleep patterns along with habits, places visited, speech patterns, and socialization during the day, it really could change peoples lives and make for a deeper understanding to help people with their health, habits, social welfare, any number of things.
You could have an AI assistant that provides people for coaching needed to lose weight or to exercise or to stop smoking, etc.
The problem is these companies are too bureaucratic and too penny-pinching and beige to actually do any good or try something interesting and different.
I agree with you, giving a company all this information is terrible. Their stupid, expensive ventures are going to flop as long as they keep doing stupid things with the data, though.
Like a junkie they will keep hovering up electricity and data until they implode.