Eyeglasses and square faces
Square jaw admirers should pay attention to advertising from eyeglasses companies. It is almost a mandatory requirement for this kind of product ads to feature models with heavy, square facial structures. Why ? Because strongly structured faces look much better with object ornament like glasses than would thin faces and the disproportionately small and underdeveloped appearance they would project . Broad faces allow all kind of glasses shapes and sizes while still looking cool.
Here is an advertising that I just spotted:
Aren't those lips, stretched horizontally by the large bone structure adorable ? Do you notice how the lower lip is brought forward by the slightly prognathic chin ? Do you feel how such a salient jaw can give the person this superior, almost arrogant look, without the slightest bit of effort ?
This is a face, with an above average bone structure development and jaw box.