Rolling NEED does not eliminate those who rolled GREED, it just doubles your roll. Everyone still has a chance even if one person wants to keep needing.
Most items are bind on equip, not pickup so if I really need it I can try to work that out with the greeder who actually won. And for the EDCs, salvage, who's not going to click NEED on them? It comes down to a roll anyway.
In response to those who need every item, Once I see any given player hit 'Need' on two items, I need every time after that. If they're going to be greedy, I'm going to lower their chances of getting anything.
The first 'Need' could be legitimate. Twice, and I follow suit. It's not about me getting the item, it's about them NOT getting it.