We can use a Mahatma Ghandi or a Mother Teresa as a moral exemplar to figure out what our virtues should be. But we cannot use an Usain Bolt or a Serena Williams as a physical exemplar to figure out what our physical capabilities should be. Why this disanalogy between moral and physical excellence?
It’s our intuition that Bolt and Williams exceed the physical norms for humans to a significant degree. But although Ghandi and Mother Teresa did many supererogatory things, I do not think they overall exceed the moral norms for human character to a significant degree. We should be like them, and our falling short is largely our fault.