Facebook’s product is me, you, and every user. That’s what FB sells, OK?
Facebook places you in a store window and sells you. If you manage to sneak in a few of your own products to sell and make some profit, too, good for you. But the main goal of Facebook is to make Zuckerberg rich by peddling us. Nobody asks the products on a shelf their opinion on the customer and on the uses the customer would put them to, do they?