You've hit the nail on the head "why would anyone want a middle class life" yeah they have never known anything less than that.
The other factor to me is the careerism, all that matters is the project success, who cares if the riff raff end up committing suicide. Honestly listening to some of the tapes of those meetings makes me feel sick. Thing is, I think so many career orientated people I know wouldn't even consider that what went on in the meetings was beyond the pale. It's black mirror level.
I'm from Ireland, but I live on "mainland Britain" the UK class system is mind boggling. I think the establishment here despises the "great unwashed". God help any working class person who ends up in the courts system.
One final thing, Paula Vennells was an ordained church minister. She was preaching while she was overseeing the destruction of so many innocent hardworking people. https://en.m.wikipedia.org/wiki/Paula_Vennells
I don't know why that makes this all worse but some how it does. Somehow it speaks to what the UK is or has become.
I doubt she'll get the prison time she deserves. Actually I doubt she'll serve any time at all.