You seem to think "Elite" means "Rich" whereas "Elite" in this context means "opinion-former". Some can be rich, some can be MPs, civil servants, journalists, editors etc.
Prior to the current government the Tories were in power for 14 years, mostly with a majority. So I guess your opinion that the elites are left wing must be quite recently formed?
For the newspaper editors, take a look at the circulation figures for 2020 (the last year that we have a full set)[1]
The Guardian, i, and Mirror had a combined circulation of 800,989.
The Mail, Express, Sun, Times, and Telegraph had a combined circulation of 4,246,217. That’s 81% (you'll also notice there are more of them). The newspaper landscape in the UK is overwhelmingly right wing.
I don’t know why you’ve included Civil Servants, since according to your own data only 32% of respondents think they’re part of the elite.
I think this has probably run its course. I did ask for evidence, but from your answers for CEOs and bankers it’s pretty obvious that your opinion is just based on vibes.