Your data is the most valuable thing you have to offer and you give it up for free. Why would they install a barrier to people giving away the the most monetize

Your data is the most valuable thing you have to offer and you give it up for free. Why would they install a barrier to people giving away the the most monetized asset in their business sector? Why would they let you avoid seeing ads? A user who doesn’t look at ads to drive the value of user data is worse than a non-user; at least a non-user doesn’t cost them any overhead.