In an ideal world without greed, you are right in saying that copyright is not beneficial for the human race as a whole. Unfortunately we don't live in such a world. Look at what happened with insulin. The person invented it placed a ludicrously low priced patent of one dollar because he felt that it should be available cheaply to all who need and yet today in the US, insulin is a ridiculously expensive drug which many people struggle to afford. This is because while the inventor was not greedy and thought about the greater good, the pharmaceutical industry did not. They saw an opportunity to make money and are screwing people in the process