Depth Psychology: A greedy person is one who hates to lose money, security, power, and sexual prowess, and stockpiles it all. As a result, such a person is unable to form a true emotional relationship to anyone else. Life will be the poorer for it. Dreaming about greed is a warning that we would be better off to use and share everything we have!
(Avariciousness; Covetousness; Niggardliness) Greed in a dream means committing a sin.
Be more moderate. Or: you think you have been short-changed. Repressed urges / drives. As in Miser. Also a hint that you are ravenous, which is a sign of unreasonable needs for gratification. See Wolf.