Given the total population of 'famous people', are they over represented? In some cases the over exposure of famous people can be good, such as raising awarene

Given the total population of 'famous people', are they over represented? In some cases the over exposure of famous people can be good, such as raising awareness about things that otherwise might be ignore (depression, breast & prostate cancer, dementia). I will grant that 'famous people' may well be more likely to be involved with quackery, due their social environment and on average having more money to waste.