Really at this point it has highlighted it is impossible to be mainstream and maintain the status quo. When you start putting out unique works on random buildings and people are willing to pay enough to cut out the wall and replace it for a windfall it is fundamentally impossible. The subversion is fundamentally lost. Even doing something akin to putting Gitmo in Disneyland to force people to confront crimes committed in their name while trying to escape would see it scavenged and sold. Given a choice between making random landowners richer and himself it becomes clear why.