IMO our culture is currently obsessed with being correct. Political, broadcast, and social media encourage us to form opinions and to form tribes around them. It is more than enough to be good to those around you, and to seek to understand their problems. The world expands beyond our understanding, and our model for it is always incomplete. It is naive to believe that we can devise simple formulae (much less consistent) to fix it. Can we ever fix the problems of people we do not know? I read this as an honest lesson in humility.
I also liked this ending part: Or in other words, "Be excellent to each other".First, embrace humility. You may find it refreshing. Others will find it refreshing too. Be forceful, be impassioned, just don’t get too high on your own supply. Don’t drink your own kool aid. Question yourself as fiercely as you question society.