I think there's some difference between simplistic manipulation of emotions and art, because in this case, every piece of advertisement, efficiently engineered for emotional effect (ugh sorry), would be art. I think there's a difference between, say, a very well done, psychologist/focus group based life insurance ad and "real" art, otherwise every piece of propaganda, manipulation, lie would be "art". Seeing how well they do this stuff, they could be considered pretty good art too. They also often try to exploit the most profound, deepest emotions...so basically, I think you're totally wrong. Manipulation is manipulation, not art, and Michael Bay is not an artist but more of an engineer.