Greed

Greed (Definition from http://en.wiktionary.org/wiki/greed)

A selfish or excessive desire for more than is needed or deserved, especially of money, wealth, food, or other possessions.

If all of us humans would
buy only what we need,
eat when we are hungry,
invest when we need to,
Then
We would not suffer from
Investment scams, and
CEO's with excessive wages.

Will we ever learn?
I will, you won't.