We seek opinion from others to validate our status. If the opinion of others aren't satisfactor to our own, we can feel threatened. Therefor we can act on our own justice, even if it seems cruel, it is just to seek order to our own stabilization- This is essential in controlling the chaos within us.
To have opinion, or not to have? We still seek confirmation or belonging from entities around us. So the inextricable everlasting quest of superiority complex will always corrupt. There's no escaping the cycle of vanity. The only thing one can do is to accept, accept that being wrong is totally fine.
Then again, much here is totally subjective and should not be taken serious.