If there's one thing you can be absolutely certain of it's that every scrap of the data they collect is either making companies money hand over fist or they strongly believe that it will soon. No company is going to bother collecting, storing, (hopefully securing), backing up, and analyzing all this data without a reason, and to them money and power are the only reasons that matter.

Right now companies are somewhat limited in how much use they can get out their horde of private and personal information, but AI is changing that rapidly. As long as you don't mind a huge rate of error (and companies don't because it all becomes "good enough" at a large enough scale) it's basically perfect for the task of digging through endless amounts of information and spewing out bullet points.