It's not at all greed. Any Money fills 3 functions:
1) Unit of account
2) Store of value
3) Medium of exchange
Money simply means that I can sell my old camera then maybe buy some pizza with some of the proceeds vs trying to find someone will accept a camera for a pizza, and then give me something that is worth the camera-the pizza for change. Money fulfills a function that allows an economy to work to some degree of efficiency.
Nice concise summary of the function of money but I would add to this concept by saying that money represents time. We spend time to acquire ____________(write anything.) But even this is not quite right, the true equation is
money = |(life SPENT)*value|
were;
(life
SPENT) is equal to Life Span - {Life Span + [years:months:days:hours:minutes:seconds of work done to acquire ____________(write anything.)]}
and value is equal to (what we are willing to take as compensation for life
SPENT that will never be experience again).
Therefore we get this function for greed (if we define greed as purely a moral nagative acquaintances (i.e. selfish action without any real positive or intended benefit for others beyond ones inner circle of acquaintances),
Greed(x) = [someone elses |(life SPENT)*value|x / [your |(life SPENT)*value|]
were;
x is equal to unfair compensation for someone elses |(life SPENT)*value|
OR
an unfair advantage to acquire ____________(write anything) that is used with disregard or contempt for someone else
Greed is not necessarily intentional, it can happen over time and catch an individual unaware. Yet once at the point of being greedy it is hard to stop because of the human instinct for self preservation and resource protection.
I kind of cover this in this post:
https://bitcointalksearch.org/topic/the-biggist-threat-to-decentralized-crypto-currency-and-the-bitcoin-ideology-228120
