@Lazlo That is not at all normal. My cousin had jaw surgery, for a weak chin, and he looks great now. With my new expertise, I see that he will get the family tear through deformity but pretty mild. Someone in my office had it done in the early 90s, with wire fixation. Other than cutting a nerve, he looks pretty good. I think the surgeon could have reduced a bit more, he still looks a little angry. Most of the people on the jaw surgery group on FB look great. I don't know about in person, maybe I'd have a different opinion.
Very cool images btw, helps me understand the anatomy. My facial bones are all roughly in the right place I think but you all have told me that already. What I don't understand is that my maxilla appears to be normal yet most surgeons want to multi-segment and bring the front segment down 2mm. I've been wearing a night guard since I was early teens, seems to me you can't judge the stability of an orthodontic movement on teeth like mine, which have been held in their current position for so long. In someone not in an orthodontic appliance I'd agree.