This is sort of a reply to several of your comments in this thread about how we could still do all the things we do if money didn't exist. Your point reminds me of something a co-worker once said; he pointed out that "profit" is another name for "inefficiency." That is, in another context or agnostic of value-judgements, the difference between input and output which forms "profit" would be looked at as an inefficiency or defect in any other system.