Because high winds simply aren't very deadly at all. Look at the 15 killed in Andrew.
WATER is what kills. Grenada didn't have massive flash floods and mudslides going down denuded mountains. Their damage was mostly from wind, not flooding.
I know this is a weird discussion - I'm not trying to downplay Haiti by any means.
Many of the deaths in Haiti could have been prevented. All that money the world has poured in could have gone towards infrastructure - sanitation, drainage, distribution networks, etc. But thuggery and corruption have made that impossible.
There is a dysfunctional culture at work in Haiti. The media refuses to address it as such. That would be a nice first step towards really helping the people there.