An individual can absolutely value their output at any value they so choose and be correct. The idea that "the market" is a "fair" determinant of value should be challenged at every step lest we allow people to suffer because they do not have enough money to pay for the "fair" amount for healthcare.
That is not even mentioning that we do not have perfect information (to come to a "fair" value) and that facets orthogonal to product value (i.e. marketing, brand inertia) play a huge role in determining what customers are willing to pay for.
But even playing along with the naive model: Tidal has a non-zero amount of paying customers. Some people enjoy music (+ Tidal exclusives) enough to treat it as more than a cost:convenience ratio.