The same reason people eat meat. The reality of what happens behind the scenes to produce meat or their paycheck is carefully hidden from their sight, and when

The same reason people eat meat. The reality of what happens behind the scenes to produce meat or their paycheck is carefully hidden from their sight, and when it's hidden, it's easy to convince ourselves that we aren't some monsters who run concentration camps with cows and pigs in them, but decent humans who have taste for medium rare steaks. What Meta does to society is more insidious: it gets people addicted to content so it can make them eat a poison for their minds, so-called ads. Surveillance is just method of making the ads more invasive, tailored to each user individually.