You're relying your intuitive concept of entropy ("disorder"....of things people care about) rather than the actual definition of the thermodynamic concept. Entropy can not be reduced, only produced, and the work people do does not look anything like what you'd do if you were trying to minimize entropy production.
Hah. You must be new to humans. Ordered destruction is a thing. (Alas, so is chaotic creation. Hail Eris!)
Usually it performed to add the concept of risk to scenarios where people think there is no consequence for squandering said currencies.