[dylan604]

It only reduces the value that they are not serving you ads based on direct targeting based on your metaprofile. They are still going to serve you ads. They are still going to be collecting data about you from all of their products be it their apps where your actively and knowingly providing them that data by how you use their apps, or whether it is through the embedded SDKs in other apps or websites you use and you are not knowingly providing them data by how you use these other apps/sites.

You will never be worth $0 to Meta. The analytics they can glean can be used in other ways than just providing you a targeted ad experience. You're still telling them trends. You're still telling them what someone of your sex, income level, age, geographic location, blah blah blah prefers to spend their time online doing.