Labor competes for compensation, CEOs compete for status (above a certain enterprise size, admittedly). Show me a CEO willingly stepping down to be replaced by generative AI. Jamie Dimon will be so bold to say AI will bring about a 3 day week (because it grabs headlines [1]) but he isn't going to give up the status of running JPMC; it's all he has besides the wealth, which does not appear to be enough. The feeling of importance and exceptionalism is baked into the identity.
Spoiler there’s no reason we couldn’t work three days a week now. And 100 might be pushing it, but having life expectancy to 90 as well within our grass today as well. We have just decided not to do that.
Almost everyone is "labor" to some extent. There is always a huge customer or major investor that you are beholden to. If you are independently wealthy then you are the exception.
[1] https://fortune.com/article/jamie-dimon-jpmorgan-chase-ceo-a...