Principles are ways of successfully dealing with reality to get what you want out of life.
Ray Dalio, one of the world’s most successful investors and entrepreneurs, cites principles as his key to success.
Less experienced, less believable people may not be necessary to decide an issue, but if the issue involves them and you aren't in sync with them, that lack of understanding will in the long run likely undermine morale and the organization's efficiency. This is especially important in cases where you have people who are both not believable and highly opinionated (the worst combination). Unless you get in sync with them, you will drive their uninformed opinions underground. If, on the other hand, you are willing to be challenged, you will create an environment in which all criticisms are aired openly.