In the UK, nurses are also hardly paid living wages [1]. Particularly in high cost of living areas like London. About USD15/HR for an experienced band 5 nurse.
[1]https://www.rcn.org.uk/employment-and-pay/nhs-pay-scales-201...
[1]https://www.rcn.org.uk/employment-and-pay/nhs-pay-scales-201...
This cost disparity is not one of developed world vs undeveloped, it is one of an insane health care system vs a rational one.