That's too bad. If you're paying, you're the customer. If you're not paying, you're the product.
For fees to change the balance, they have to have enough economic weight to swamp advertising and tracking revenue, so that losing users makes tracking unprofitable. But very few services like WhatsApp can charge so much that the balance is shifted.
Obviously you don't need to "be the product". Selling a shortcut to a bit of your attention makes a lot of money, too.
Edit: And you are always in the position to choose how much attention you grant the apps you use.
Products are sold