Yes but not all and there isn't an homogenous national standard which there needs to be for transparency.
I have mixed views. When I left school in 1978 the clever, middle class girls, who weren't quite med school standard, went to do degree nursing at London uni's attached to significant London Teaching Hospitals. The O'Level girls (probably 4-6) who weren't quite A'Level standard (and uni was not such a thing then), went to do SRN nursing at 17 at the local hospitals.
Similarly, at a London Teaching hospital, where my mother had heart surgery in the spring, the nurses were outstanding. Outstanding does not spring to mind when I reflect on my interactions with A&E and outpatients at my local hospital and my mother's local hospital (district generals). I could think of a few other epithets but won't commit them to writing.
The nurse practitioners oth at the London Minor Injury/UTC near where I work in SW London have been excellent - and dare I say more than a little middle class - usually in their 50s.
In relation to midwifery, I found a London Teaching Hospital very mixed 30 years ago. The young midwives were very posh and very right on and the older ones a very mixed bag indeed, and some of them I would describe as "rough" in every sense of the word. My next baby was born on the Surrey borders and the midwives I deal with were diverse and excellent. The younger ones, fairly posh, were quite arsy and not very helpful - they definitely didn't think their role extended to practical post birth help.
I suspect there are different norms in different hospitals. My local district general hospital is in a very privileged area in Surrey. There is nothing outstanding about the nursing staff, some of whom, especially in A&E appear "as rough as a badger's arse". The slightly bigger hospital in a much more mixed and deprived area a few more miles away is staffed by much more expert, polite and more helpful nurses from a very diverse demographic. Class isn't particularly a factor at either. Behaving in a polite and civilised manner is markedly absent at the "posher" hospital but I suspect there are fewer developmental opportunities there - and it is just outside eligibility for London weighting.