Yes the studio's derive an economic benefit but again, what of the fact that being inclusive is a gateway for new cultures to be a part of the story. You need to broaden your consideration. If a Chinese boy watches a film with no one like him its an alienating experience. Let's make it more welcoming.
Three cheers to that. The world is a big place. Nothing wrong with popular films reflecting, in a small way, some of that cultural complexity, rather than some small corner.