Mo Tzu, founder of Mohism during the Hundred Schools of Thought period in Ancient China, is a master of reason.
For a sick horse, you hire a skillful physician. For a fancy garment, you hire a skillful tailor.
Mo furthers, "For all such tasks the ruler will not employ his relatives, nor those who are rich and noble but lack merit, nor those who are merely good-looking, for he understands that they are not capable of performing them."
Therefore, you cannot expect the incompetent to perform the extraordinary. Know who you are interacting with, and don't expect more than what is rational.