The thing about artwork is that while expertise can add meaningful substance to dialogue, even the uninitiated can be moved to feel something or get engaged. Art can influence us even if we’re not an expert.  This is different than opinions about science or engineering or foreign policy, where uninformed declarations can actually be counter-productive. I don’t want to listen to an uninformed opinion about whether bridges should be inspected for safety. I want to be able to count on experts who can properly evaluate the safety of bridges.