Examples, Venetians made West African glass beads, and New Spain's silver mines.
The marginal cost of forking the code or competing for that MR is near zero.
So eventually, the value of every utility token will approach MR = MC.
Competing on features is the quickest way to obsolescence.
Btw, privacy is a feature that can be iterated and improved, too.
To maintain digital value, a value prop must be a maximum, not able to be improved upon.