I agree that editing photographs can lead to deception. But one thing to consider is that the type of light can change colors significantly. If taken outside, even the amount of cloud cover can influence the colors in the picture. I don't have any problem with an individual being honest about using something like a WhiBal card to help them create a layer that corrects for light conditions. I want my photographs to capture the colors my eyes see, and if the picture is taken under incandescent lights, it tends to have a yellow/orange cast, under fluorescent lights, a greenish cast, and so forth. Again, it comes down to the honesty of the individual since the type of light used, the placement of light source (distance and angle), along with the white balance setting on the camera can all change how the colors are represented.