It doesn't work. No matter how many degrees of separation you want to ignore...unless you were thrown in the woods as an infant and raised by wolves...AND EVEN THEN...the wolves provided for your existence, until you could do it on your own.
I know of no one, who willed themselves into existence, used absolutely zero resources of a community or country and became a billionaire.
Do these people have customers? I agree with you, no man is an island. I heard a guy on all radio say he made it one his own, bought his first rental unit with money his step dad loaned him! "those people" are that stupid! I had a good laugh about that all day long! The host of the show didn't even correct him, e just went along with it. It boggles the mind!