Photo retouching is an art not exclusively applied to supermodels. The tools are available to all.
Photo retouching is not a new art. Anyone who has ever spent any time in a dark room has learned how to pass a hand between the negative and the substrate to alter a section of the image. That primitive pass became air-brushing which became Photoshop.
The level of retouching sophistication is what seems to be the issue in France where mandatory disclosure of magazine photo retouching is under consideration.
I cannot believe there is anyone in the western world who does not assume that all the published photos they encounter have been in some way retouched.
I do like the idea that every publication ought to list the names of the retouchers. It is after all an art, not a deception, and its practicioners have various skill levels. Some retouchers have a good eye, while others a high tolerance for the ridiculous. Consider this jennifer Hudson album art.