In reference to how it's said in the Roots Bio, it's certainly a derogatory term. Traditionally it relates to slavery but is taken to stand for general oppression now and how a class system of respect based primarily on wealth. This harksback to the ancient city of Babylon where the Jewish people were enslaved before moving on to Egypt, where they were enslaved again.
You are all wrong on one, Boris is the Leader of the Freaks, Hence he is the RingMASTER and that he was said to be in Ur comics. And also Lost hog isn't strongest because Kinjo, In UR comics, was kidnapped not Lost Hog. Oh and Leaders clan is Ashigaru, Duh...
Excallibur - Thhe discussion is regarding the Leader of each clan. Lost Hog is the Leader of Pi Fang read their clan description. Also the leaders do not have a clan Leader, they are a freelance fighters.
These are the definitive Leaders of their respective clans. We are not talking about Leader cards or the strongest cards, but the character who heads up each clan, and these are the correct pairings of character and clan.