A company safety film may not be great art, but that's not the purpose it's designed to serve. The fact that the 'crap' images are probably making money for some people shows that they are indeed meeting their intended purpose.

Explicit erotica (aka porn) and a fine artistic sensibility may coincide on occasion but probably not in most cases. The subject matter may more important than the presentation and indeed, too much 'artistry' may detract from the primary appeal which is on a more primitive level, primitive in evolutionary terms at least. Explicit imagery may bypass the part of the brain that appreciates light, color, texture etc. and go straight to the arousal part. That is not to say that an exquisite fine art nude for example may not be sexy or even arousing, but there's probably a difference in degree if not in kind.

If you're talking about technical quality, lighting etc., the same criticisms have been leveled often enough about much of the content here. Again though, content over presentation. If you're running a diner selling scrambled eggs plopped on a plate to hungry customers, adding artsy carved toast wedges and parsley flowers probably isn't a high priority.

There's always a market for quality but I doubt the average viewer is saying, 'Gee, that would really turn me on but the composition is unbalanced and those labia really need ambient occlusion.' Those same people my enjoy an exhibition of so and so's nudes at the Met, but they probably leave their raincoats at home.

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken