Villains are needed in this game... it is the spice! But some individuals are only about destroying the fun of others. Griefers. The yhav a right to exist and we even need them in gams like this!
But giving some of them the possibility to be the leader of a community that counts over 100 nobles is simply impossible. In real life changes like this would be made illegitime within seconds.
BM should not be ruled by game mechanics.