Yeah, I think I agree with you. Here is how I score it.
* Is the company good for workers?
Some fulfillment center workers say "no". From what I know of the company and people who work there I'm going to say a solid "probably yes" it is good for workers.
* Is the company good for the owners?
I'm saying "no" on this one because the average amazon stockholder has only made money from Amazon by speculating the price would continue to rise as it always has and sold it off at some point.
* Is the company good for the customers?
It probably does squash out some competition (and thus choice), but overall I'm going to say "yes" it is good for the customers because people generally seem happy with Amazon.
* Is the company good for suppliers / producers of content/goods?
I honestly cant answer this one.
* Is the company good for society?
I think I'll say "yes" to this one because they offer competition to other industry giants with AWS, new phone, etc. I am not a fan of kindle or their work in that industry.
By the way I like the phrase "unusually unethical".
They succeeded without doing anything unusually unethical in the marketplace.
If be relatively average ethically and a corporation worth billions isn't a model for success in a capitalist society, what is? Honestly?