The Ikkunbanmin-ron theory was used as a great cause of toppling the domain clique system and introducing democracy, and it functioned as an ideology to oppose not only to the inherited privileges but also to the powerful wealthy class, most notably Zaibatsu (industrial and financial conglomerates).
一君万民論は藩閥体制打倒とデモクラシー導入の大義として掲げられ、身分的特権のみならず財閥などの経済的権力に対抗するイデオロギーとしても機能した。