FYI
Greed is not good.
Yes, I have the sauce.
Greed (avarice, covetousness, excessive desire for goods or power, or love of money) is always bad. It breaks one of the Ten Commandments.
http://www.scborromeo.org/ccc/para/2536.htm
Someone who cannot engage in capitalistic endeavors without falling into greed, should abstain, to avoid the occasion to sin.
Discussion
there's a popular brazilian humor youtuber (that secretly is an ancap, even has a gadsden flag tattoo) Maicon Küster, in political videos he says that he almost choose to be a politician but by knowing himself, he abstained because he was afraid that would be corrupted by money and power
and knowing him personally, he would certainly win elections
seems like you are saying that greed has no place in the market place. i agree. i think the austrian school economists would refer to incentive but i agree people must judge thier motives. i cant state that for profit operations are de facto greedy but many peoples are because of the persons intentions, their vision.
Everyone can be effected by greed (like lust, wrath, sloth, envy, etc.), but some people are clearly consumed by it and need to back off and cool down.
That includes people who promote other economic systems, of course. Greed is something that comes from the person, not the system.