A high-ranking person or black belt in one style does not necessarily correspond to a high level understanding in another style or group of styles. There are many ryūha in Japan that have existed for many hundreds of years, as well as many more that were created in modern times. The concept of organizing a codified system is obviously not a Japanese or outwardly Asian one, though many international or foreign styles may adopt the nomenclature and systemization of koryū bujutsu ryūha in order to add an air of mystique or legitimacy to their system, or simply as a way to show respect to their roots and background.