Right, this is a values problem, not a technical problem.

Who should get to see Taylor Swift? How much should they pay? How should profits be distributed?

These are philosophical questions. If you assume a particular set of answers to these questions, designing the correct sales process is not difficult. But everyone has a different set of answers.

This really made me reconsider my phrasing, and then the basis for my assumption about “fairness”. Thank you for your thought provoking comment.