I work for a living
That was tongue in cheek, right?
I have worked at ABW. Come 1630, you couldn't find a CS anywhere in the place - they were all out the door like a shot. The Mil there stayed until their work for that day was done. Hence it took the CS 3 times as long to get anything done as the Mil.
If MoD CS disappeared overnight, we'd still be able to function - and we'd be able to get things done a damn sight quicker too.