When it comes to karate masters who embody ever facet of the martial arts: it doesn't get much better than Mr. Miyagi. Self control, discipline, and only wrecking someone's s**t when they totally deserve it.
That kind of stern love, care, and dedication is what a true karate master must embody in order to become as respected and effective as Miyagi. Otherwise, you're just another chump in a karate gi who's trying to stroke their own ego and get a few kids from the neighborhood on your subscription plan.
But that hasn't stopped deluded and self-proclaimed "karate masters" from going out into the world and convincing people their hot stuff. Trouble is, when it comes to fighting, it's pretty clear to see in two seconds whether or not you've got skills. And these guys possess no skills whatsoever.