Not only due to socialistic ideas. Even big private corporations have a tendency to grow organizational pockets and positions of no real value. If you have worked there you will have noticed them.
I know mulitble people who have exactly that job, and non of them work for governemnt.
IBM, that has existed for 100 years but they are the exeption not the rule. Most companys dont make it that long or grow that big.
I would suggest you read economic theory on this "The Theory of the Firm" by Ronald Coase is the usual place to start.
There are vast examples of workers not doing anything on any organization, blaming only the public sector is denial. The truth is that a company doing well has enough resources to do well even if they pay non productive workers.