To make it simple.
Would you live in a village where you have 1000 people with 1 apple to eat, or 999 people with 3 apples to eat and one guy with 1000 apples, because he was able to find a way to grow many more apples per day?
Conclusion: Jeff Bezos has added enormous amounts of value to the world.
I guess you will probably say something like, "but I would like to live in a world where this person must give away most of those apples, until he maybe has only 6 apples per day and others have 4". Would this person have still been as motivated to take a risk - which entrepreneurism is all about? Especially knowing that maybe 5% of the start ups will succeed.
In such world, no one will take risks and everyone stays with 1 or 2 apples per day. There's a reason US has so many successful unicorn start ups.
It takes skill, talent, passion, resources and massive amount of luck to pull of what Jeff Bezos did. In a more socialized version of this system, it would have not happened.
The more you tax potential returns and reward, the less risk or resources would people be willing to put in to create something new.