> If I think my neighbor's a dick, I don't need to hold a trial by jury to decide if I'm allowed to disinvite him In this case you are exempt from that princip

> If I think my neighbor's a dick, I don't need to hold a trial by jury to decide if I'm allowed to disinvite him In this case you are exempt from that principle because following it will cost you disproportionally more than the possible damage done if you're wrong. Not because universal justice principles somehow become inapplicable outside of courtroom.