Can't say for sure, there are probably more instances in third world countries were corruption or monopoly creates market inefficiencies that bitcoin can blast

Can't say for sure, there are probably more instances in third world countries were corruption or monopoly creates market inefficiencies that bitcoin can blast through - though I think it boils back to "bitcoin will save us from predatory transaction fees" which I think has been invalidated at this point. Notably the same virtual grey market forums I mentioned for WoW and Runescape have been using high reputation middle men (who charge a 10% fee) to broker the transaction for over a decade. Bitcoin is just more efficient then those middlemen transactions because people are willing to trust entities in exchange for the convenience of a near-instant transaction.