Here is an argument
Understanding leads to an optimal life (as we all agree)
Empathy helps us understand the emotions of ourselves and others.
(spending time to find a functional definition of empathy)
Empathy is the capacity to understand or feel what another person is experiencing from within their frame of reference, that is, the capacity to place oneself in another’s position.
Empathy helps us gather more data regarding ourselves and others.
Data being more comprehensive leads to a more optimal decision.