On a related note, I think what you might call "low income" service jobs are often more likely to put you in contact with those sorts of people than some middle class job. Sort of like being a maid. Maids work for the rich and the rich are more likely to be those sorts of people. So a maid is more likely to know one of those people than a middle class person and in a way that is quite personal (you're in their house, possible living under their roof). I know of cases like that involving well known people. Naturally, the perspective is more quotidian and more accurate than the kind of comical celebrity fantasies middle class people often believe.