[throwawaygh]

Yeah, it served its intended purpose for a long time. It's extremely difficult for a wildly successful university from humble roots to stay true to its roots. Even public institutions mostly fail to stay accessible after becoming successful.

CMU has damn close to zero "working class men and women from Pittsburgh" in its student body these days, unless by "working class" you mean "parents were doctors, lawyers, and software engineers from shadyside/squill/fox chapel/etc." :(. On the other hand, it is one of the two big reasons Pittsburgh experienced a renaissance in the early 21st century (which continues to this day), and in that sense did achieve the goal of helping the Pittsburgh community thrive. Just not by elevating working class folk.