Rise, my sons, and take your wrath across the stars, in my name. The Night Lords are experts in the use of terror tactics to win battles and demoralise their foes before the main combat even begins.
Curze's rule was not one of beneficence, however, but one of fear and repression.
See Foe Romance Subtext for the less explicit version of this, and Fatal Attraction when it's more dangerous.
We all bear witness to a final truth -- our way is not the way of the Imperium. The Night Lords are synonymous with terror and murder, for their favoured mode of warfare is the unfettered application of brutal, overwhelming force.
Having clashed with Rogal Dorn, he was censured by his brothers, who convened a council to consider the matter of their darkling brother.
Curze however slew his guards and ﬂed, outrunning his pursuers and returning to Nostromo.