In a perfect world everything and everyone would somehow be perfect.
Since we are not perfect we are not qualified to judge one another.
Since judging from within is sometimes required to facilitate society,we choose those whose lives have been such that (in the interest of society) they are willing to put themselves up to be judged by Society before being ‘Named’ - to become judges.
This is the philosophical basis for the American Legal System.
Any examination of this American System, in action, demonstrates disappointingly the fallibility of this approach, BUT IT IS STILL THE BEST SYSTEM WE HAVE.
The only known path to the experiencing of perfection in this life (except perhaps complete solitude) is to seek one individual whom (for whatever reason) one is willing (and able) to refrain from judging.
Ideally this nonjudgmental attitude should be mutual.
(This might be why God suggested to Adam and Eve in the Garden of Eden that it might be better if they did not eat the fruit of the TREE OF THE KNOWLEDGE OF GOOD AND EVIL.)
AND THE REST IS ‘HISTORY’