The same liabilities apply to slides and prints sent directly to juries. Images can be manipulated in Photoshop. They can be manipulated in the dark room. I select an appropriate background for my digital image. I generate, sometimes, dozens of images under different lighting conditions, different settings, and different framings. I carefully select the best looking shot. All this is the same as when I took my work to a studio for slides and prints. The next step is to assure that the finally selected image actually looks like the real thing. Will the image in pixels look the same as the image in ink, on photographic paper, and on a slide? These cannot be assumed. Here Photoshop comes in handy to modify the contrast, brightness, color balance, etc. The challenge with all 2 dimensional reproductive media--photographs, digital images, slides, oils, for that matter--is accuracy of color.
Misrepresentation of the product is altogether another issue. Shoddy craftsmanship may be disguised in jury photographs, but cannot be obscured from public view at a public event.