Capitalism is competitive. If you do something profitable, people will try to beat you, and they'll piggyback on your research to do so. Tough cookie. Your goal as a company should be to build a competitive advantage by (a) capitalizing the fact that you're the first mover, and (b) building moats that are tough for the competition to cross. Unfortunately for Apple, aesthetics just isn't that big of a moat.
And, unfortunately for the world, the government is providing big businesses that are too lazy, incompetent, and/or ill-equipped to do the above with an underserved competitive advantage in the form of a broken patent system.