What would you select as the most important characteristic of a society?​

I would say the most important characteristic of a society is likeness.

Explanation:

I would say likeness as my answer because without this there would be no society. Likeness gives people a sense of belonging and can form relationships within a society

classical republicanism, also known as civic humanism, is a form of republicanism  developed in the renaissance inspired by the governmental forms and writings of  classical  antiquity, especially such  classical  writers as aristotle, polybius, and cicero.