Quite a sweeping statement there - “So we now pay vastly more for less and less and poor quality at that”. I’d be interested to understand what that’s based on? As it’s certainly not reflective of my experience.
Considering the civil service remunerate at a far lower rate than their industry counterparts, it’s no surprise they struggle to get effective administrative grade personnel through the door at c£22,000pa. Especially if you add in London working.
You are of course correct, there’s no direct link to GDP production (there is an indirect one though!) but without the civil service, you wouldn’t have industry held to account for the provision of workers safety, vehicles on the road that are designed, built and tested to an appropriate standard, produce being sold across the world, our natural environment being protected, prisons operating in any form and the military being provided with and supported in all their operations, amongst a few examples.
Unfortunately the media narrative of the civil service is that it’s vastly over resourced, vastly top heavy, gold plated (especially for pension provision), entirely wasteful and provides no benefit. The reality doesn’t always fit the narrative though and I’d challenge anyone to work a day in a civil service department. Inefficiency comes from the political elite.