> At least the goal of the public sector is to serve the public whereas the goal of the private sector is to serve the interests of there shareholders.

Goal, yes. In the abstract. Unfortunately, humans run everything. Most humans are decent and will try to uphold the public good. Some get into positions of control and decide they can profit off of it, so why not?

Society's constant struggle is to keep these greedy F*'s from screwing the rest of us. Just like freedom must be paid for, so must we constantly root out corruption and greed.