Dak
mentat
While there may be a physical difference, the moral difference between two such people is indistinguishable. You may conflate individual contribution with human worth, but this is the same fundamental issue that mankind has faced since day one. I also think that your logic is backwards: ideals should come before practicality, otherwise you are aiming for underachievement.
What is "human worth"? Some sort of metric based on the ability to breath, eat, and shit?