Apple hasn't "invented" most things, from the personal computer, MP3 Player, or smart phone. They tend to revolutionize the things by making them work extremely well.
if by 'revolutionize', you mean 'let everybody else spend time, effort and money developing the idea, and once they've proven the market they buy an interesting company in the space with tons of patents, shut down everything they'd done before and make their interesting and take credit for the revolution, meanwhile, their new presence in the area mutes actual innovation, because they use all of the oxygen in the room'... sure, yeah, they do that... but the revolution was coming whether Apple participated or not.
if by 'revolutionize', you mean 'let everybody else spend time, effort and money developing the idea, and once they've proven the market they buy an interesting company in the space with tons of patents, shut down everything they'd done before and make their interesting and take credit for the revolution, meanwhile, their new presence in the area mutes actual innovation, because they use all of the oxygen in the room'... sure, yeah, they do that... but the revolution was coming whether Apple participated or not.
Apple is great at winning capitalism.