I like that Jeff has the funds to dump into important projects like Blue Origin, and General Fusion, etc. Projects that have zero chance to be profitable at a small scale, but significant benefits to humanity once things start working.
Elon is probabally the prime example of a crazy billionaire who dumps his wealth into wildly unprofitable ventures to get things done for the betterment of humanity.
Of course most billionaires end up like Larry Ellison, whose only drive seems to be increasing the size of his boat collection. He has every right to be doing his own thing, but it would be nice if there was a way to incentivize incredibly risky projects with a potential for significant public good.
So far, people seem to be benefitting from Amazon.
while there are exceptions, most companies sell products and therefore mostly grow by selling products. That is, they grow because people think there is value to the product and fork over there hard earned money.
As such, it's pretty clear that Amazon is providing tremendous value to society.
Certainly if a corporation can grow to get so large, it's hard to argue against it. It becomes a bit like a force of nature in that sense. But there are possibly repercussions to that, just as there would be repercussions if a black hole were to suddenly appear in our solar system.