It's a two way street, I think inverted snobbery is still alive and well. My best friend frequently goes on an upmarket organised trips - in that they are expensive because they go to out of the way places and appreciated very much by well educated clients.
On one trip to Africa a group of women kept calling her posh which quite upset her. The tour guide said she had an answer for that frequently used attitude with some of her clients. 'You obviously meant that as a slight. How about I call you common, how does that sit?' That shuts them up.
I am regularly taken as 'posh' because of the way I speak and the education I received. I'm not and it really gets up my nose. I just happen to speak like that as BBC received pronunciation seems to have been inherent in my upbringing.
It's all a big melting pot nowadays. In fact coming to the Ariege, one of the poorest departments in France, I am so pleasantly surprised by the range of English people that have moved here. From all walks of life and it is irelevant how one speaks, was educated, how big your house is, how much money you have and where you went to school. We all came here to get away from the rat race in UK and immerse ourselves in a relaxed way of life in the wonderful beauty, climate and culture of this corner of France Profonde.