The Dreaded: Various in history, but most prominent in recent years is Admiral Caliéne Sargas “the Worldburner”, for actually pulling the trigger on the Worlds’ single use of a strangelet bomb in the Burning of Litash, and the ensuing multi-megadeaths.  (Somewhat unfairly, since the Stellar Council and the Lords of Admiralty actually made the call to proceed with the destruction of Litash, but…)  She dislikes her reputation with the same minor blind spot that most of the Sargas have, but acknowledges that it’s actually rather useful to have.

(Or, on occasion, rather annoying to have because no-one will bloody stay and fight any more.  Frustrating!)