Interesting division, I agree it has a lot to do with it but wonder if the division isn't art/engineer... but social/shy.
I've proved I'm not an engineer. But I consider myself shy. And I am an Ansel Adams loving landscape photographer. He's not taking any more pictures, neither is Henri Cartier-Bresson. They missed a few spots, and I am going back for touch-up.
Perhaps, but Adams was anything but shy. By contrast, Alec Soth is very shy. Both shoot/shot 8x10, but in very different ways.