i think there are a lot of unnecessary judgements being made here. For starters, the rahs are only an issue if you make them an issue - if you think they're going to be a bunch of rich arseholes then you are more than likely going to treat them as so before actually getting to know them which i think is a mistake a lot of people tend to make.
On the other issue, my family aren't poor, but they've never been exactly rich either. I went to what is probably one of the worst state schools in my area, but that has never bothered me. My parents have always paid for my accomodation and my nan my tuition fees - i get my student loan in weekly installments to spend on food and anything else i want. I'm still going to come out of uni with a £12,000 loan to pay off like everyone else. and i've found that most of my friends are in a very similar boat and that more often than not, a lot of my richer friends are being made to pay for everything themselves. My best friends parents bought our house - as an INVESTMENT, yet she is footing the bills and rent herself - even though they own it. Everyone is different and has their own personal circumstances and i think its important for you to realise not to judge them until you know them, but also to understand that there are over 10,000 people at exeter university and you'd be hard pushed NOT to find people who you get along with x