What's your point? The Private schooling/Oxbridge education is a marker of wealth.
What's going unsaid here is that for a while it was possible, because of a functioning welfare state, that an approximation of the fallback that rich people had was available to the rest of us povvos; this is the issue. It also applies to business as well as art too, to be fair. Rupert can found a business selling bespoke cat earrings or whatever and if it fails he has a fall back. If I try to run a business that's shit or doesn't make money and it fails and I default on my mortgage.
It's standard pearl clutching because the concentration of people who can afford to work in creative industries in the upper economic echelons of society is something worth complaining about because it matters and we're culturally poorer as a result.
I guess they shouldn't have been vampires then, I guess. Who would have thought we had such a bloodsucker problem?