The problem in the public sector is that there are endless rules to follow, that no-one on the ground or even in middle management has any power to change.
A lot of it is due to supply contracts with large private sector service providers who make a fortune acting as a middleman for supplying goods and services at extortionate rates.
For example, if I want a train ticket, I can't just buy one and claim back the cost like a normal person, I have to fill in a form, which needs to be signed by my manager and then it's sent to the team PA to book it with the external travel agent, which involves some back and forth as the price will have changed during all the faffing around also they can't book all types of ticket and won't book open returns even when cheaper than fixed trains (fuck knows why) so we lose so much time because we're hanging around for the train we're booked on, or we have to buy a flexible ticket anyway because the event over-ran, also they add on their cut so even when it all goes to plan it costs more.
Then if I have to fly anywhere (for hands on work in places like the Isle of Man) I have to fill in another form to justify my frivolousness and environment destroying activities and I have to fill in an extra risk assessment, because going to the IoM counts as 'dangerous' because I am going alone to a rural area outside the EU (seriously).
I do wonder what would happen if the higher ups said 'lets just quietly ignore all this nonsense and get on with the job how we like, which is much cheaper and more efficient'. My guess is it would take years for anyone who makes the rules to notice.