CommunismVsCapitilism

[Papewaio]

Money is an idea, a note is only worth as much as both people believe in it.

[Soulforged]

Yes you're right, but i talked of money so i don't have to refer to "the product of work" every time. Money can be changed, but it doesn't must to in socialism-communism. Anyway the "money" is supported actually for some real objects. Firstly it was gold (it still is) but now is used the amount of dolars as reserve. Anything that you take in history surged from ideas, will be supported by real, material things, i'm sure there's no exceptions because it would be alogical.
In any case saying money deserves money will be pretty absurd.