Commenter scarabmango on Youtube writes:
This theme screams “EVIL, motherfucker. I’ll feed you your dog, I’ll drag your daddy’s casket behind my car, I’ll make your momma call you a bastard, and I’ll do it all with the same SICK smile.” Bossman was the best-ever heel because he embodied the essence of a sociopath. He wasn’t the overdone “Badass” like Austin or the cartoonish “Dark Lord” like the Undertaker. A guy like Bossman was something you might actually *encounter* in real life, which is scarier than anything.
Pretty much sums it up.