The way people talk about socialism and communism in the west show the sad state of our education system. communism is already a big part of our lives. When you sit at the dinner table and ask for the salt, you get it. When are at work and you ask for a code review and the person gives it to you. If the need is great enough, or the obstacles to ability are small enough, people do things. From each according to their…
(Aside: The core problem with communism is that a nation much larger than the optimal firm size. See http://en.wikipedia.org/wiki/Socially_optimal_firm_size)
But I think it shows a gross misunderstanding of both capitalism and communism to say something like "Our economy is firmly based on communist actions and the capitalists exploit this". It's not. Both concepts are very modern inventions, and the psychology of how people act within a firm (regardless of its size) is based on how people act within family units and bands: based on working towards shared goals and loose sense of reciprocity.
It's not a coincidence that money is not normally used between family members: people don't normally buy things off their family, but receive them as gifts/favours and then are expected to give similar value gifts/favours in the future (a gift economy). That's the psychology that the firm re-uses, and it predates both capitalism and communism.