I realize it is comforting to think that, but it's an over simplification.
As for being a communist--I really am not sure what that is.
But I will say this: The earth is too populated for everyone to live well. Therefore the only chance anyone has at being happy is to be among the financial elite and to have the wisdom to use that money well.
Unfortunately, it generally takes a person of narrow focus (not so much a person of great intelligence) to achieve great wealth, while it takes a broad understanding of life to be wise--so the accumulation of a fortune and the wisdom to use it well are almost always mutually exclusive.
Nonetheless, were all things to be evenly divided--even divided in true proportion to a person's ability and effort (could that ever be measured)--no one would have enough to live well.
Therefore, I do believe in capitalism--for if we all only got what we truly deserved, no one would live a good life, and we'd all be doomed to a miserable existence (except for the dull).
So in actuality, I am glad our system is unfair.
Why do I argue otherwise? No matter; it will change nothing anyway.