I guess my point is greed is ONLY a motivating force. It can motivate you to be destructive or productive depending on the incentives of the system which you operate. In this way, greed is a tool. Its not that being excessively greedy makes you destructive. It's that when a society allows destructive behaviors, greedy people will be destructive.

For example, Genghis Khan was greedy in his conquest of the ancient world. His greed was mostly destructive to civilization. But he operated in a system of warring states where there was no rule of law and thus nothing external to himself to direct his greed to productive uses.

If someone started doing what Genghis did today, they would likely be stopped very early in their career because we have systems that prevent theft, conquest, murder, etc.

But someone like Jeff Bezos, who is arguably just as greedy as Genghis can direct their greed towards means that are rewarded by the system in which they operate. Both Bezos and Genghis live like emperors because of their greed, but the system in which they operate allowed one's greed to make productivity, while the other system allowed one's greed to make destruction.

I think bitcoin is a system which funnels greed towards production.