The vision that Jobs sketched ended up redefining the future of music. From 2003, Apple sold 300 million iPods and 10 billion tracks via the iTunes Store. These figures were superior to that of Wal-Mart and Best Buy, who previously were the top music retailers.
As such a visionary he can be seen as a world leader. In most of my classes in the management program he is brought up and studied as an inspiration on how to run a company, and inspire change.