You are assuming:
1. Value created for other shareholders is a good thing
2. $ "value" directly translates to actual resources or services
3. These employees and customers would not get the same or more value elsewhere if Amazon did not exist
4. This "value" created by Amazon is better compared to the alternative (such as more resources used locally instead of global trade)
Well, you are assuming there is a central benevolent dictator who can compute "Value" more accurately than millions of people collectively voting with their wallets.