This same thing ordinarily occurs in the estimation of poems, paintings, and a great many other works of art: ordinary people enjoy and praise things that do not deserve praise.
 Marcus Tullius Cicero, On Duties (44 BC). copy citation

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Author Marcus Tullius Cicero
Source On Duties
Topic painting praise
Date 44 BC
Language English
Reference
Note Translated by Walter Miller
Weblink http://www.constitution.org/rom/de_officiis.htm

Context

“On the other hand, when some act is performed in which we see "mean" duties manifested, that is generally regarded as fully perfect, for the reason that the common crowd does not, as a rule, comprehend how far it falls short of real perfection; but, as far as their comprehension does go, they think there is no deficiency. This same thing ordinarily occurs in the estimation of poems, paintings, and a great many other works of art: ordinary people enjoy and praise things that do not deserve praise. The reason for this, I suppose, is that those productions have some point of excellence which catches the fancy of the uneducated, because these have not the ability to discover the points of weakness in any particular piece of work before them.” source