The principles that Locke spoke of need one more element to make them work effectively. Self-Responsibilty. In Locke's vision, people should be and are responsible for themselves in most things, and only come together for things that cannot be done alone, namely defense from other nation's and the few laws needed to make society run efficiently (murder, thieving, etc).

What is the reference for self-responsibility? I don't remember this being elaborated on but it has been a while since I have read his works. And how does this tie into democracy and economics? I think perhaps its the point you were trying to make below but I'm not sure.

In Communism, it's principles are based an idealistic view of humanity. In communism, Marx's true vision (which there is not much said about in his writings), humanity has no greed, no reason to be jealous of anyone else, no reason to be selfish. It completely ignores the truth about humanity in that humanity as a whole are greedy and selfish and will not normally do something unless it directly benefits themselves, and that as whole, they are lazy. You have probably worked with the people who will do the bare minimum at any given thing. But there is no oversight for the people at the top.

Everybody knows the flaws of communism just as greed and inequality are the flaws of the free market system. I am not trying to say that one is more right than the other. I am trying to see if one is more fitting to democracy than the other. I would agree that self responsibility is more of a quality of a free market than communism. However, I am not sure how self-responsibility is a quality of democracy.