Board Thread:Questions and Answers/@comment-5055963-20130422174757/@comment-691135-20130422181004

Symbols can have multiple meanings and uses, so I don't think it's necessary. You mention it representing honor for deceased people, but one can also honor heroes and predecessors, a recurring theme in Gokaiger and the context in which it is used here. Also keep in mind that because the Harry Potter Wikia uses it for one meaning does not mean all wikias must use it for the same meaning.