“Works of art which lack artistic quality have no force, no matter how progressive they are politically,” declared Mao Zedong, and although I don’t often find myself in accord with the late Chinese Communist leader, I reckon he was right in this instance. Great art often has a social function, but not every piece of work made with a social or political agenda turns out to be great art.

http://www.theguardian.com/stage/theatreblog/2015/apr/24/quality-is-crucial-for-disability-arts-poor-work-fails-artists-and-audiences?CMP=new_1194&CMP=