If someone got himself elected judge and banned the whole realm at once, I'd consider that to be in violation of the social contract as well. Just like rulers, back in the day, using OOC bans to get rid of people they couldn't otherwise deal with.
It's not because someone got an IG power through legitimate means that they can use this power with impunity.
It wouldn't be though. I happened not that long ago on FEI where a realm was having fraction issues. One of the small factions got a candidate made judge (appointed I think) and they then started banning those opposed to them, which was pretty much everyone.
