They do. And muscle strength is the foundation of muscle endurance. AND SPEED. You can't have the endurance to lift 100 pounds for 20 reps if your max STRENGTH capacity is 101 pounds for one rep.
Yeah, but you were trashing a pro fighter's methods in which he was clearly working on muscular endurance in different leverage positions for higher reps. If you've fought for extended periods of time, you'd know that your arms get tired from keeping them held up in guard.
Having a good 1RM in bench won't help that. It will elevate your potential 20/30/40RM, but if you don't do the sort of endurance work your musculature won't have acclimatised and simply won't be used to that.
I'm not sure why you feel the need to have to prove yourself... but you really don't have to do that anymore. You don't have to appear 'tough' or 'strong', if you're doing all this to prove something to yourself, well how long can that go? I've seen people keep that up indefinitely due to insecurities within themselves that they're unwilling to look at...
You don't have to be right, or know all the answers. And you don't have to prove you're tough. You seem to just constantly want to prove points. Why? Doesn't seem like a healthy mindset or way to live in general...
It's great to have goals. Goals with integrity that are filled with passion that light you up. It is however another whole thing to be on the defensive all your life, trying to prove points and prove you were 'right'. Cos I tell ya, whatever you 'prove' to us will be long forgotten fairly soon... don't worry about changing our minds or enlightening anyone, feels like quite a burden you've put on yourself...
All just food for thought of course, up to you what you do with it.