why are there never pictures of this?
There are few reasons I can think of:
1. It's not often done, as there is an easier way for cosmetic surgeons - implants. Cosmetic surgeons rarely work with bone, except in the case of rhinoplasties. They work with implants, soft tissue (facelifts etc), fillers.
2. When it is done, it is maxillofacial surgeons who do it. Maxillofacial surgeons do not typically post before and afters on their websites. In fact, the vast majority of them, including some of the very best ones, do not have a website at all, although we are in 2014.
3. It is not often done in US as far as I know, in fact I don't know if it is performed there at all (maybe with rare exceptions). Most countries in the world preclude doctors from posting pictures of their patients online for advertising purposes (certainly the case with Germany and Switzerland, where we know it is performed).