All fungible as well as Non-Fungible tokens will represent the value that the users bring to the platforms/systems and reward us for participating.
For example, imagine playing a video game where all in game items are built on the NFT standard. A super rare item in game might end up having some sort of real value that a user can then later extract for time spent in game. They could either sell the item via a decentralized market, or leverage that item and take a loan out on it by using it as collateral. And why shouldn't they be allowed to do that? If a user pours hundreds of hours into an online game, they are generating value for that game network by being someone that other users can play with.