You want to bring back someone that you've lost. You might want money. Maybe you want women. Or, you might want to protect the world. These are all common things people want. Things that their hearts desire. Greed may not be good, but it's not so bad, either. You humans think greed is just for money and power! But everyone wants something they don't have.
"I long to see someone who died", "I want to be rich", "I want women", "I want to protect the world"... They're all desires. In other words, wishes. If you ask me, there's neither "right" or "wrong" when it comes to greed. You humans go around ranking certain types of greed in order from good to bad, which makes you so hard to understand.
There wouldn't have been a bright future if I had died or I had been the only one to survive.