The transformation of non-art into art has a name: artification. It is based on a (tacit) belief in the superior value of art. It thus acts as in an ennobling through which “an object becomes a work, a producer becomes an artist”. To do so, there are institutions that regulate art, which define the boundaries between art and non-art. For the anthropologist Marcel Mauss, “an art object, by definition, is an object recognised as such by a group”. In this case, the group seems to be journalists, collectors, gallery directors and also, maybe, a little bit the public*. 

* Vera L. Zolberg and Joni Maya Cherbo, Outsider Art. Contesting Boundaries in Contemporary Culture, 1997