If anything they would a create a matrix like simulation so they are the only ones awake and alive on earth.

Do not agree. Humans are social creatures. We need human interaction. The elites are no different. Having humans of free will obey you is a feeling of power you will never get from having a bot programmed to obey you. Having the power of life and death over a human is a feeling domination you will never get with a bot. Having sex with a human is not the same as having sex with a bot programmed to obey you.

So there will always be lower class humans. This is human nature.