Very good post ..
Greed is harmful .. mostly because it slows you down and offers nothing than frustration ... If you find yourself in greed .. either ignore it, or try to "fix" it ..
greed/ɡriːd/
noun
1. excessive consumption of or desire for food; gluttony
2. excessive desire, as for wealth or power
Now we must quibble about how much is "excessive".
Suppose your goal is to build a company big enough to colonize Mars.
How much should it be allowed to earn before it becomes "greedy"?