Maybe Steve Jobs' greatest accomplishment was getting titans like Jony Ive and Steve Forstall, who could each run their own successful design and/or tech companies, to put aside ego and work together under one roof.
“My model for business is The Beatles. They were four guys who kept each other kind of negative tendencies in check. They balanced each other and the total was greater than the sum of the parts. That's how I see business: great things in business are never done by one person, they're done by a team of people.”