Bias against the public sector

A very strong bias against the public sector is a common trait of us indians. Public sector bashing is very good passtime. I have noticed it even within my own family, despite being associated with the public sector for a long time. Whenever we go out for a dinner, my wife criticizes the delay as well as the quality of foood if consumed in a public sector hotel, while at the same time not even noticing a greater delay or a really lousy food served in a private sector hotel of repute.
I often wonder why is it so? Is it because we regard public sector as our own and therefore while carrying a very low opinion of ourselves, we carry the same opinion of the public sector.
At the same time it is also true that the quality of the public sector leaves much to be desired, but the private sector can be equally bad or even worse at times. But fortunately or unfortunately there is nothing like a bias against the private sector, rather there is a bias for it.