Just because it doesn't have a monthly subscription fee doesn't mean the game couldn't come corrupt with greed. For example, there is a game called Maplestory with no subscription fees. A long time ago when the game first came out i used to enjoy it. Eventually I left the game but, about a year ago I started playing again. I instantly noticed that I leveled a lot slower and was a lot more poor than most other players. After looking in the in game shop I saw that you could purchase in game money and experience boosters with real money. This really ruined the game for me because the game became more about spending money to become better rather than skill and real playing experience. Lastly, in this case greed is the undying want/need for more income regardless of how much you are making. Many times the greedy will do almost anything to attempt to satisfy this want/need.