Just think the impact that would have had if it had been divided up and given directly to each Haitian adult. The adult population of Haiti is roughly 6 million, so we're talking about almost $100 per adult Haitian. Roughly, it's about 1/8 of the per capita GDP of Haiti.
Imagine what you could if you were a poor American and received 1/8 of the American per capita GDP after a disaster (~6000 USD). That's a new roof, or a replacement vehicle, etc.
It's not life changing, but it would have been very significant, and massive in scale.