There's a limit to what surgery can do in the jaw and chin especially, because of nerve placement and limits posed by inner mouth structures. Also, since they cannot really change the upper jaw, there's an esthetic limit to what can be done to the lower jaw so it looks all right.
If you shortened chin too much, the upper lip area will look quite strange in proportion even with a lip lift. Reducing brow bossing radically for some leads to a low nose bridge which works esthetically on some, and not on others. If your jaw juts forward from the top of your skull (somewhat frequent in males), no FFS will be able to entirely fix it (since the upper jaw position will limit how much the lower jaw can move).
In general, an attractive man, will make an attractive woman without FFS and even more so with FFS. Esthetically, men that are seen as more beautiful have slight more feminine faces than the average men (Orlando Bloom, Jude Law, Brad Pitt, DiCaprio, most of Hollywood leading men!)