'lesser masterpiece'?
When they asked Ford about "The Searchers", he told them it was "only a Western and nothing more", when they asked Hawks about his by that time much interpreted films, afaik he said something like "All I ever wanted to do was to entertain the audience", Keaton said just the same.
Well, I personally don't give a *beep* about what Kurosawa says about his own movie, if his actual purpose was only to make money or to make art, this one is for me one of his very greatest films. Incredibly funny, brillant characters, full of social commentary, but all in the shape of "entertainment" - that's what Hawks and Hitchcock are famous for. When Yuki starts singing by the end I'm melting away... I love this film.