Not an unreasonable question in isolation, but "greed" is doing a lot of heavy lifting here. People's retirement accounts include shares in businesses because t

Not an unreasonable question in isolation, but "greed" is doing a lot of heavy lifting here. People's retirement accounts include shares in businesses because they expect those businesses to pursue profit and act in their interests as shareholders. If they didn't, people would rightfully pull their money and put it into more responsible businesses (or savings accounts, etc.). Charities and publicly funded social programs exist too, but those are different things.