The Arbiter armor certainly has a samurai-ish look to it. Frankly the whole Elite social structure and everything about them seems to be derived from Japanese culture. I just don't get why everyone is making a fuss, it seems to work, it's just never been visually represented. Seems like everyone has a certain image in mind as to how they want things to be rather than what is canon or what is going to be shown as canon, which is ridiculous really.