The thing is, Simus, that the comparison is between something that is entirely a matter of personal opinion (taste in art) and something that is a matter of fact (chess rankings). It doesn’t quite work. The first is based on the vague perception of somebody else looking at what the person does and has a totally arbitrary value, while the second is based on the definite actions of the person and has nothing to do with what anybody else thinks. Some people will think the artist is the best, some people will think he is the worst; everybody places the chess player at one specific level of expertise.
It’s sort of like saying, “67% of people like rutabaga, so rutabaga is on the level of these chess players.” That’s only true specifically to any person who personally gives rutabaga a 67% approval rating. To the people who love rutabaga, it’s false.