Probably, but I don't know if the Ghostbloods actually work well for this. They don't seem to be a very rules-based organization, so they don't have a code to follow. The examples given were criminal organizations that have strict internal codes which, while not the same as the laws of the region they operate in, have the same weight and importance and are enforced by the social structure. The Ghostbloods MO seems to be "get the job done, we don't care how," and the only real rule seems to be don't kill other Ghostbloods, so they don't have anything to swear to, and they likely would expect their members to do things that might break most potential Skybreaker codes, even many of the criminal ones.