The ratio of poor to ultra wealthy is far greater than a million to one. Other than that, the only practical reason they have for not doing it is that they still need human labor for most of what they do. That isn’t going to change anytime soon, despite AI. However, they don’t need their labor force to be free or happy, which is why the US is on the cusp of a fascist takeover.

The rule of law has largely stopped mattering to the ultra wealthy. It may occasionally inconvenience them, but they know it will never affect them in any personal way.

Not all of the ultra wealthy are socipaths. Unfortunately, terminal-stage capitalism does a surprisingly good job of selecting for sociopathy at the very top of the hierarchy. Becoming that rich requires both a strong belief that you deserve it and a disregard for how acquiring it harms others.