Because Bezos had a vision and his company has executed on it very well, they’ve done a phenomenal job. As a startup, they were far more nimble than B&N and beat them at the market of tomorrow while the latter was bogged down with the market of yesterday.
Amazon has provided a great service that is better than their competition. Amazon has done that. The management, the workers, and yes, the founder and CEO.
I keep going back to the Trump thing because it’s a clear example of a large group of people accomplishing something because we all know the President’s expertise or vision had nothing to do with it. But he is the CEO of the country, so why aren’t you saying “Well if Trump is so incompetent then why did he beat al-Baghdadi? Why didn’t Obama beat him?”. Note that I’m not equating Bezos’ leadership of Amazon to Trump.