Bullshit. It's not even remotely true that you have to be wealthy to study in the UK. I received absolutely no financial support beyond the standard student loan and managed to save money. If I decided to sell my body online it would have been for extra cash, not because I needed to.
I also supported myself through the loans and working part time (in a supermarket from 16 - 21), but I don't think your comment is really fair. Bear in mind:
a) Prices for accomodation have gone up a lot in the last few years. At my university in the south west, rental prices for off-campus accomodation have roughly doubled since I was studying a decade ago (and at the time they were one of the most expensive in the UK). Even with the maximum maintenance loan it would only just cover the cost of accomodation (assuming you only need to pay for term time).
2) The means-tested grants and loans expect higher earning parents to support their children at university, but a lot don't. I believe in this case your parents can make a written declaration that they won't support you, which allows you to get the full loan and grant, but this option isn't made clear.
3) A lot of people are just bad at managing finances, and spend money on things they don't really need. Schools really need some sort of financial education, but I guess it's too profitable to bankers for people to be educated on how to be sensible with their finances.
Comparatively speaking, you need a lot more money ( likely 10x + ) to study in UK then 10-15 years ago. And Maintenance Loan didn't really work out either. You will have to get a part time job just for living. Especially if you are in London.