Than it depends on what your goal is that makes it greed or not.
It's only when the resources you accrue exceed the scope of your objective and/or your means that your endeavor becomes greedy. Greed itself cannot be a goal, as you claim. It's a possible bi-product of the pursuit of said goal.
But if you're so hellbent on specifics, then that begs the question of exactly what you would consider a "need".
