Muffins.

Muffins are unable to conjure hypotheticals. They lack the ability to critical think in a way that gives them the ability to imagine themselves as something that they morally disagree with. This is, in a way, honorable. They have a relative morality so strong that they cannot even think about deviating from it. Unfortunately, muffins lack the subjective thinking that could allow them to possess any forms of tactical empathy necessary for a success through nuance. A muffin could never become an economist.