They both sell it for profit, but Amazon doesn’t contribute changes upstream, so the public + rest of the industry won’t benefit from their work. It’s not an equivalence.
Are you sure that's the case with AGPL? Cause they can sue them and enforce the contribution. I doubt that's the case. And those who went with MIT/BSD openly allow distribution without contribution.
I really don't see how Amazon is to blame for this problem, they weren't the ones who picked the license.
> Do you think it's sustainable for one company to make the software for free and another one to sell it for profit?
They both sell it for profit, let the most profitable one win.