They need food, but more critically, they need fuel. They have to run hundreds of trucks, front end loaders, ambulances, cranes, generators for emgergency power, etc.
Some of that equipment will have to be bought or leased - so more $$$.
They have lots of sources of food aid (OxFam, etc.), but not many places will send them significant $$$ to run the rescue, the relief, and help rebuild, too.
When you have a disaster, you want $$$. Try not to be cynical, although it's easy to do it with a place like Haiti.
// And now, back to the thread !