Well my current boss or current customer, as I have my single person company and doing contract (well I am a CEO :D), is still in the business so I don't have much to argue.

I also was not looking for a job as a former CEO or for CEO job openings.

I just know bunch of people who had masters degree and were looking for ANY type of job. If they wanted to just earn anything having masters degree and sending CV for a cashier position was mostly useless. I expect there is the same effect in play that someone with CEO experience will be "overqualified" for the job, meaning no one will hire them because:

a) in case they find anything better they will jump the ship

b) if it turns out they are better than person hiring them, well you people mostly don't want to hire someone who can replace them.