Yeah, I doubt it, too :). I was lucky to get my MAME in young, when I was 15. Patrice Munsel at the Ogunquit Playhouse. With Marilyn Cooper as Gooch! I loved it!
I still maintain that the view of the Old South in the show is at the very least jaundiced and that Beau is portrayed as someone who has escaped a culture that is rapidly becoming extinct. Any thought that Mame has "helped the South revive again" is strictly in the minds of Mother Burnside, Sally Cato and their ilk.