But ... his greatest strength is understanding that he's not smart enough, and the important thing is to hire people who are better than you to do the things that need to be done, so that you have time for thinking about what needs to be done.
It was nice to work for a guy with a BS in CS, someone who understood aspects of the sorts of problems that myself and the other founding programmer faced in the early days. We could talk about scaling issues, or database design issues, and Jeff had more than your typical "boss" understanding of what we meant.
But we were both much better programmers than Jeff would ever be. On the other hand, he's demonstrably much better at building and running a massive corporation, and much more willing to make decisions that many of us (I hope) would stumble over.
What Amazon became was a massive corporation that didn't care much about employee burnout, didn't care much about its treatment of employees at all, and relentlessly focused people on their lives as consumers, when most of us spend more of our lives as employees and citizens. Amazon has been amazing for us all as consumers, but it's almost certainly a net negative when viewed through the lens of employees (within and outside the company) and citizens.