This view seems inconsistent. Artificial manipulation is not sustainable in the long term. The ability to continually create conditions that lead to cheap labor is limited and will eventually fail.
AI is not magic, neither is capital for that matter. To perform any function in the world, it needs some type of physical form or device to do so. These devices take capital to manufacture and maintain. They're also vulnerable to intentional damage. There are obvious limits.
Are you saying that you presume the inequality is the natural state of things? What are you basing that on? A world with governments and corporations that are capable of squashing the populace? Do you ever wonder what influence this has?