The theory of public choice suggests that
government agencies tend to be inefficient because they are subject to institutional arrangements in which managers do not have an incentive to be efficient.
the goods provided by government, whether public or private goods, are not scarce.
government agencies tend to be inefficient because the people running them do not understand the concept of opportunity cost.
you can lower your tax bill if you are careful not to consume too many government resources, regardless of what your neighbors do.