Government contracts limit who can bid by the sheer volume of paperwork & other crap you must put up with.
I agree 100%. My firm does small-scale government contracting, and the paperwork and all the required certifications (including the usual PC crap) is a bear to complete. We pass on a LOT of government RFPs/RFQs/smaller projects since it would literally cost us more to do the paperwork than it would to complete the project.