In a world with less perverse incentives these people whose education was largely funded by tax payers would be working on actual valuable projects rather than optimizing how to get people to click more ads for a private corporation.
* I'm confused by why you bring up tax-payer funded education... do you think these employees don't pay taxes?
* What is your definition of "valuable"?
HN crowd doesn’t accept that, but most people here have no idea about how business works.