Humans don't put effort into distinguishing between right and wrong. Because it's not essential to survival. What is essential is for survival is staying on the winning side - serving the cause of the 'dominant'. It explains the atrocities that were committed by our ancestors (and some of us).
There are two ways to be critical. Positive and negative . Either you criticise to improve the outcome or you criticise to crush one's self esteem to cause harm.
If you want to be the best,then get used to criticism. You cannot be the number 'one' and be loved by all at the same time.