Put another way -- how many upper-middle class professionals (doctors/lawyers/engineers) would you say have graduated from college? Many, many more than 1 in 5.

Put another way -- how many upper-middle class professionals (doctors/lawyers/engineers) would you say have graduated from college? Many, many more than 1 in 5. You can't deduce data about specific occupations from a broad statistical measure like overall percentage of bachelor's degrees in a population.