Technology is a lever that can hugely amplify differences in capability.

A 10% skill difference between two people with shovels will result in a much smaller output difference than a 10% skill difference between two operators of heavy duty earth moving equipment.

With software, this dynamic occurs in the extreme, as the cost to run a software program is so low. A hour of unskilled human labor cost hundreds or thousands of times more than an hour of computation. And the quantity and complexity of output from a single hour of computation is rapidly increasing.

Edit: reworked the comment to make my point much more clearly

Part of being effective is leveraging your abilities via managing other people. An effective manager can make 10 people each perform 10x more effectively when working towards a goal. You could argue then that one person's effectiveness increases the whole organisation's effectiveness 100x

Of course with bad managers it can easily go the same amount in the other direction, but it seems that Bezos has extremely effectively leveraged his abilities in management and built a very successful company because of that.

Really? I would say we become a lot farther apart. The productivity an elite can have with computer support is far greater than an uneducated worker.

Two people move their finger forward one centimeter.

One of them made a hole in the ground; he's going to put a seed in it, which will hopefully grow into something useful.

The other one pushed a button which started an automatic lathe which created an engine piston worth a hundred thousand dollars.

The difference in the productivity of two people is practically limitless.

But the second person isn't being productive. The lathe is being productive. In Amazon's case, the person actually pushing the button on the lathe can barely make rent.