They will only be controlled if regular people are deluded into believing so and allow it.
I totally can't see that happening. Regular people being fooled by corporations, against their best interests? Nah....
They have no interest in making sucky products and anything that masses of people buy almost definition cannot be a superior experience.
They have no qualms about selling sucky products, though. Have you visited the app store?
Every nonzero finite dimensional inner product space has an orthonormal basis. It makes sense, when you don't think about it.