I'm not really a fan of "whatever my instructor asks of me, there's gotta be a good reason". Unconditional respect is a bad idea. Respect should be earned, and has to be continually earned. Assuming nothing but positive about someone and giving them unconditional respect leads to bad teacher-student relationships, where the student fails to ask questions they should. This hampers the growth of both student and teacher.
And there is usually no good reason for just beating someone. Some of us needed the lesson in fighting (we get too cocky, and need to be taken down a peg), but for most of us that doesn't require a beating - just domination in sparring. And some of us needed the toughening, but that can also be had without a beating (though some toughening exercises might be described as a beating). The only really good reason I can think of is to get the experience of fighting through a beating. And that's not an exercise you'll need often.
As a chief instructor I made an effort to earn my students respect, especially through example.
I passed that on to any of my students who were becoming instructors themselves.
And there isn’t USUALLY any reason to give out a beating. Key word, of course, being usually.
One of my students called my home one night late. (All senior students had my home number)
His car had a flat tire and he didn’t have a spare. I could tell by his voice he was drunk.
I went and got him, drove him home, told him I’d get him in the morning and we’d take care of the car. (He was VERY drunk.)
Picked him up in the morning, went and bought a new tire, had the flat repaired. Told him I’d see him in the dojo on Monday.
He was a young man, twenty years old. Lost both parents young, lived with his elderly grandmother.
Instructors sometimes represent a father figure whether they want to or not- another reason why being a good example is something all instructors should think about
Monday comes. Class is going to be a lively warmup then I’m sparring with each student while I verbally coach them.
He’s about the fifteenth one up. I say nothing. We just spar. Every technique I throw is harder than the one before. When I have the opportunity to purposely throw a technique into his arms because of the position he’s in I throw it as hard as I can. No kiai, no grunt, no expression on my face. But I can see the obvious expression on HIS face. It’s one of uh oh.
Finally I go from morbidly silent to yelling as loud as I can. “YOU WANT TO DRINK AND DRIVE!”
I repeat this with every slam I hit him with. I whooped the living dog sheet out of him.
We end hugging with him crying in my arms and me telling him I love him. Which I sincerely did and still do.
I then address the class about what happened.
I know he never drank and drove again. I know him well, he’s been a great family man and has been my attorney for over thirty years now.