The truth is out, and your suspicious are confirmed. Science has confirmed that the bearded men are more likely to be bad boys, using their facial hair as a mask of hostile masculinity. Even during Movember, beards make men more likely to be awful (and not just because they're full of poop).
An Australian study surveyed "500 men aged between 18 and 72 from India and the US," and "studied men with nine facial hairstyles varying in length - from light stubble to a heavy beard." The subjects first identified their amount of facial hair, and then answered a variety of questions about gender roles.