About the 'might' question, we all in the neighborhood have equal might and the town council is mightier above us all. I'm sure you generally agree that it's a good system when inhabitants of a place, e.g. a dorm room or a Mars colony, agree on some basic rules everybody should follow and then enforce these? I wouldn't call this 'might makes right'.

If the environment was to change drastically (e.g. our population grew 100-fold) then keeping these rules would become silly and they'd be changed.