The crux here is how costly the CEO AI is.

If we have OpenAI running every corporation's CEO AI, we have a mega monopoly.

If the CEO AI is just a little cheaper than a human CEO and gives results that are just a little more efficient, we maintain the current system.

If the CEO AI cannot measurably beat human CEOs except over the long term (which can be highly likely due to the many intangibles), we won't see this except by forced acquisitions by AI firms of human ones.

If the CEO AI is runnable on a laptop...