If you tell me about a CEO of a food franchise who likes to keep it real by serving at the drive-thru of his first restaurant, the purpose of the anecdote being that it's nice to see successful people staying interested in the 'nuts and bolts' of his profession, my first reaction isn't that I know some CEO's, but none of them do what you described, and then concede there might well be some.
My first reaction is that this is nice to hear. My personal experience in the subject is not important. Saying 'there could quite well be some' , when I'm telling you I knew one still implies you are reserving judgement. Therefore you are still missing the point.
Fact Hunter and several others here were airline pilots, but I bet they aren't doubting the veracity of the other pilot from my hangar that I mentioned. Even if they don't personally know an airline pilot who also flies a Thruster in his spare time, I'm confident they don't find it hard to believe, even if they know most Thruster pilots.
My point is there are ATPL pilots who still enjoy flying small aircraft.
Your point that you don't personally know one of my examples is irrelevant. You probably don't know the other guy either. Maybe you can bang on about him too 🤷♂️