Even 6 months ago when I told people I thought Amazon was an all-around shitty company (having worked there) and shouldn't be mentioned in the same breath as Google, FB, etc., people looked at me like I was insane.
Somehow the stock keeps going up... I don't have any material insider info but just on a hunch I doubt that will remain true forever.
If Google and Facebook are cities, Amazon is more like an army. Can be city-scale depending on the nature of the conflict. They have great power, and in some ways the very same kind of power as a government. But at the same time the power structure is more ad-hoc, and subject to falling into collapse or docility when not led by a strong leader.
In some ways, I think Steve Jobs realized the was more in he Bezos category, and that Apple couldn't really carry on without him. So he deliberately changed his management style, developing a leadership class and stronger cultural inertia in terms of process and values. He wanted to leave a city behind him, not a headless army.