There is, unfortunately, in every large and small organisation. I can't say I've noticed any particular qualitative difference between the efficiencies of government departments and corps of equivalent size when I was working for them; if anything, the government employees were always conscious of the fact they were spending taxpayers' money that was not theirs, although I can't talk of the practical results.

If these organisations were private, waste would be equivalent, but they would lose the mentality of acting in the public interest, and there would be a profit margin taken off. I'm pretty sure it would not be an improvement overall, purely from a viewpoint of efficiency.