Second, Harvard didn't have to screen out class undesirables via examination -- if they regarded you as a black sheep you weren't getting in no matter what -- their black balling was Not Subtle. Consider their barriers to Jews that were maintained pretty much right up until the 1920's -- you could score 100% on every "entry" exam but if your name was Cohen you weren't getting in unless you had an uncle in the building-giving business. Also, the whole idea that Latin and Greek were of no use to the "majority of the population" is either irrelevant or just wrong-headed. To stevedores and shopkeepers maybe, but that's not who Harvard was educating. In terms of practical knowledge for the professions, if you wanted a scientific, legal or medical education in the 19th century you had to know Latin, probably German and maybe French. If you wanted an education in any of the liberal arts, you had to know the classics backwards and forwards, in the original. For that matter, there's really nothing more "practical" than, say, founding a country, and without a thorough understanding of the classics the Founders would not have had 90% of their ideas of politics, economy, justice, liberty, etc.