Perfectionism is the most anti-natural notion we ever had.
Nothing in Nature is perfect. They are grand, awesome, beautiful but not perfect. Right from quantum level to relativistic cosmological scale nothing seems to be perfect. Perfection is an abstraction that our minds create and project on reality and suffer when betrayed.
Yet logic, rationalism, science strive to be perfect. We strive to be perfect too as this notion urges us to excel. If we look at evolution, at the biological scale, it is never after perfect but only as good as the situation demands.
As we move from mechanistic to organic world view, perfectionism is becoming a questionable idea.