Well, facial aesthetics is a difficult and complex topic for its one. Every face is individual. Some patients can aesthetically benefit from a Bimax so that they look much better afterwards, in other cases the difference is much less dramatic and sometimes, sadly for the patient, you could not really say whether there was a surgery because it looks quite the same as before.
Of course when you suffer from a misalignment of jaws and maybe an apnea, too the functional reasons for doing this surgery always have priority. No doubt about that. But the aesthetics should be considered, too. Except someone says it totally unimportant for him. And there are certainly rare and difficult cases where its simply not possible to consider aesthetics. Thats the exceptions.
I can only speak about the surgeons I have talked to and every surgeon weights and assesses the importance of this aspect differently. So its not only a question about the individual case or surgical skills but also about the surgeons knowledge, personal perception and attitude towards beauty and facial aesthetics and its importance. Some surgeons show an interest in patients request, others not. There are unfortunately some who really dont care at all, many care the standard way they were teached during study and a few have their one conception. So you can have luck or misfortune. With the same breath you have to point out that same patients have unrealistic desires. No surgeon is a magician. But I am convinced in most cases its quite possible to increase attractiveness. Today a forward grown face is a beauty ideal which in my opinion can be reached without higher surgical risk or effort in most cases if requested.
The first two links are an evidence of that! Woman looks really good, man too, both faces are more forward, although chin of first man is very big. I would personally not prefer that but it doesn't look bad. Second man is not that bad, can not agree, I would recommend he should make a liposuction below chin because he still has a double chin which affects the result negatively. Last man, yes not really a cosmetic improvement. Mandible could have come more forward, looks still receding. But we dont know the details of his case. His aesthetical problems are very likely not only malposition of jaws but also other areas (maybe eyes, cheek bones, jaw angles, skin etc.) Need to be analyized exactly but the most important question is not whether we like it or the doctor but whether he likes his face. He has to be satiesfied and must to live with it, not we.