OK, there's no doubt that there are plenty of really skilled photogs out there, producing work that I can't get remotely near, but a recent photography diploma assignment involved choosing a well-know photographer and then trying to shoot in their style.
The thing is, a cursory Googling led me to (mostly) a bunch of 'photographers' who, in my opinion, are really 'just' successful photojournalists, whose work basically comprised terrifying, depressing images of war and disaster. To me, 90% of their success was derived from simply being in the right place. While their work often does convey the horror and sadness, in reality they had little control over the image, "Hmmmm, the light is behind the sniper. I'll just stand up......" Bang! He's dead 
Seriously though, to my mind a photographer who first visualises a unique image, then sets about replicating his vision (which may involve studio lights, backdrops, water sprays, makeup, models and whatever else) even if this means getting up at 2am in order to catch the light, deserves a lot of credit. Those whose original vision is new and/or emotionally appealing deserve extra credit. Those who possess the technical ability to capture tricky shots, more credit still.



