@edgarblythe,
Matthew Arnold has a piece on the matter in Essays in Criticism. It discusses the reasons for not setting up an official language standards agency (OLSA) in England as the French had done with their Academy.
I go on what makes me laugh and proper language does it best. It's the perfect vehicle for cynics. They can say things which populist language has difficulties with.
I have posted a couple of examples recently. One on the digestion process for the foodies and the speech by Cardinal Somebody-or-other at an American university (as good an excuse for a jaunt as there is), on where we are going wrong and what should be done about it.
I have the book somewhere. I liked the essay on Joubert best.