Most of these D1 guys are not disciplined, don't work very hard, are complete prima donnas, and it's all about them. That's why they are detrimental. What you are describing is EXTREMELY rare.To follow up on Purple Reign, I'm no expert on football, so please explain to me what I am missing.
Let's say you have a kid who has all the D-I or even Power 5 (for now) measurables. Not only that but he is eminently coachable, is very disciplined on the field in that he always sticks to his assignments and never free lances, has great instincts, and is a great teammate in the locker room. He is a quick learner and works hard off the field, lifts like a madman. He says "Sir" and "Ma'am." So not only does he have great physical attributes, great talent, and a great attitude, he is not a prima donna.
How would several or even more of these kinds of players be detrimental to a team as a whole?