And, even by his biography, a complete arse to work with too.
There are a lot of people who think he wasn't a creative genius, he was just a great organiser.
Apple never really invented much, in the second gen of the company under Jobs, it merely refined from other's first principles.
The iPod, iPhone, iPad and even the iMac, were all just refinements of existing machines that established the principles.
They made them easier to use, and packaged them beautifully, but didn't actually conceive of any of them.
Apart from one or two notables, such as the Collison brothers recently and Wozniak historically, most tech visionaries and entrepreneurs are generally reported to be wankers of one kind or another.