Can you imagine Henri Cartier-Bresson nudging the shadow a bit lower and cloning in a bit of glistening water between the shadow and the foot? The image would be neat, but not nearly as powerful.
But your missing the point, if he did do that, it would be his choice, his descision, his vision to alter the image.
Personally, I think this is an endless debate, there will always be ones that feel cheated when they learn that an image is altered in PS (even though it's just a darkroom tool), and there will be the ones that just don't care.
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