It is thought that one of the reasons why Ogai's insistence was effective even though he belonged to the hygiene department (an inferior department under the strict class society of the Army), was that he was backed by Aritomo YAMAGATA.
階級社会の軍隊で、それも一段低い扱いを受ける衛生部の鴎外の主張がとおった背景の一つに、山県有朋の存在があったと考えられている