The vast majority of food you see in packaging, ads, and menus aren't real food.
Advertising/marketing is all about ideal and real food represents reality.
Try to take a professional photo of real food. Real food has grease, crumbs, is not in perfect shapes or proportions and certain types of food don't hold up well for very long under hot lights. The whole "food" photography industry is in its owm way, a whole art form into itself.
Another arguement in favor off the egg preceeding the chicken: the chicken would have been too chicken to go first. (The chicken egged the egg on.)