You presume to know that "high end" employers (or ANY "employer") EVER asks for the actual mark that a person receives, which is ludicrous.
That said, yes, of course experience counts but not the passing mark on an exam. Your government considers a person HAS the necessary requirements if they hold the 107, period. For what it's worth, here in Canada the passing mark is 80%. Nonetheless, where you get the idea that ANYONE asks for the actual mark achieved is beyond me. It just doesn't happen...at all. You may disagree that "merely" holding the license isn't enough, and you'd have us all believe that a higher mark will serve someone better, but you are just plain wrong. Again, I'm not saying experience doesn't count, because it clearly does.
You've gone into a lengthy "explanation", and in so doing are making MY point, not yours. The mark on the license exam ONLY matters pass or fail. What DOES matter is experience, period. You've already acknowledged that yourself.
Again, what doesn't matter is the mark achieved passing the exam. Save yourself the effort of responding, because your argument is silly, at best.
On an aside, I've held over 40 different IT certifications...yes, 40. Not once have I EVER been asked what mark I got on ANY of those exams.
The bare minimum for commercial work in the US is Part 107. In Canada, there is no commercial/hobby distinction, rather it's in the actual physical use of the drone, and its physical size. Here, we test pilots via a Flight Review... meaning passing the exam isn't sufficient in and of itself, one then has to have an in-person Flight Review performed (which coincidentally I'm qualified to perform) where one has to demonstrate they actually know how to operate the drone safely BEFORE they achieve their full Advanced Certification.