(Cont'd). Unfortunately, the distribution of IQ's in the population isn't changing: Most of us don't have what it takes to become brain surgeons. And there's too many "rest of us's" competing for the less skill-demanding jobs in fast food, hotel/motel, retailing, etc.
Manufacturing offered a way out, in that the less skilled worker could greatly multiply his/her output by using smart machines. Unfortunately, there's no way to automate most services (think haircuts). And a worker must be paid from the fruits of his/her own labors. (If he/she is paid more, the difference is necessarily stolen from the fruits of some other worker.) So low skilled service work is poorly paid because it doesn't produce much. (Continued)