When you buy a car, you buy it once. The dealer does not continuously give you the ability to run people over. When you post political ads, facebook runs them u

When you buy a car, you buy it once. The dealer does not continuously give you the ability to run people over. When you post political ads, facebook runs them until your ad spend is done. When you run someone over, there's no question about whether you did something wrong. But when you run a fake news political campaign, people may land on both sides of the fence. When you drive a car, nobody but you can turn the steering wheel. When you buy a political ad, Facebook is the one that deploys it. These are very different subjects. These are in fact, so different, that you can look at the valuation differences between a SaaS company, and a traditional manufacturing company. And if the actual products are different, the delivery method is different, the ROI is different.... Let's not make this comparison again. No fault to you, of course. And back to your point: a background check makes sense if the deliverable is done once, like a car. A content filter/fact check/etc that happens before each post makes more sense in the context of a continuously-delivered model, such as paying for multiple ads.