Yes, hurricanes are destructive, especially to human settlements, but I'd be surprised if there aren't massive ecological benefits to hurricanes in spite of (or possibly because of) the destruction. Forest fires, for example, have well-documented, long-term ecological benefits. Unfortunately it looks like hurricanes aren't studied as much as forest fires.
Just doing some cursory researching online [1] [2], it looks like they basically act as dramatic "flushing" mechanisms:
- end droughts
- distribute heat from the equator towards the poles
- seed dispersal
- redistribute soil/sediments along coastlines and inlane
[1] https://weather.com/storms/hurricane/news/hurricane-landfall...
[2] http://sciencing.com/positive-effects-hurricane-4462.html