using information that the vast majority of people don't care aboutThat feels false to me. I think the vast majority of people are too busy with their actual lives to understand how much tracking pixels and spy javascript can figure out about them over the course of a multi-year cookie lifetime.
(also see: patriot act. People with enough free time to care do care, but most people are busy raising kids, dealing with relationships, and recovering from emotional exhaustion due to broken workplace politics to think about things that they can't touch, taste, or have sex with.)
People would care if they knew and understood, but learning about how anything inside "the computer" works besides throw-the-cow or pin-the-clothes or filter-the-food is too nerd/geek and comes with negative social repercussions in their circles because they "know stuff."