Rose I think you're extremely lucky to have had no damage in all that time, I think your other comments are really pretty unfair, but obviously you don't. I certainly have nothing to be snobby about, and you have no idea what my accent is like, or if I'm in rented accommodation.
That being said, if you think in daily life speaking properly, being able to read and write, presenting yourself nicely and behaving properly don't matter, then you live in cuckoo land. The majority of people believe they do, simple fact of life.
SP There is no undercurrent of sneering, I think it's simply things that have been put about by various sources, dripping poison here and there