Mind you - it's said that carbon tends to fail 'all at once' as it were - like if there's a crack in a carbon fork/frame that goes into the actual weave, then it can create a weak spot where it can fail.
Although the twisting moment that fork experienced would have been pretty high I would imagine to bend the dropout that much, the fork obviously managed to take it OK and not break.
What I'm trying to get across, I think, is that metals like Alu have a finite number of stress cycles before they fail, but this doesn't apply to carbon
AFAIK.
So that fork might well be perfectly OK so long as the dropout is replaced, and that the replacement is properly glued into place.
It might be a *lot* cheaper than buying a new fork, and you should be able to ride with your mind at rest.
EDIT: As a matter of interest, how did the wheel(s) and the rest of the frame fare in this accident?