Yes it is. (Showing up that is, sometimes that's all it takes)
Brady was basically running a business. There's absolutely nothing wrong with that, he was supplying images for mass sale and consumption, some of which happened to transcend their commercialism and become "art" or priceless documents.
Then you have the modern version of commercial "art". Warhol had an actual "factory" where others made his art. It's good commercial pap for the masses, and other co-opted the psychedelic era, like Peter Max, who produced derivative junk.
This is the logical extension:
http://www.thestalwart.com/the_stalwart/2007/11/chinese-art-fac.html
Winogrand? If you sent a monkey out to shoot 1,000,000 rolls of film, you'd get hundreds of "masterpieces". I think he was an obsessive nut.
The problem with the internet and mass marketing is once you iconize someone or his works, the legions of drones give him an internal Canonization (pun intended), and if anyone says the Emperor has no clothes, the spoon-fed public get their high-brow balls in an uproar.