There's yet another little bug where a trait belongs to a type of character that cannot then earn that trait. The GoodConspirator and BadConspirator traits are for spies only, and are triggered by the results of sabotage missions, which can only be performed by assassins. *bangs head on desk* So spies never earn the trait and assassins never benefit or suffer from how their sabotage missions go.

A simple fix resolves this, just open export_descr_character_traits.txt and find the GoodConspirator and BadConspirator traits, changing in both cases the line Characters spy to Characters assassin.