When done legally the fees for the hunt are used to fund the operations of the preserve.
Without it the animals would have no protection at all.
And feed the native tribes......
I have a friend who has gone on two 1 month long safaris to Africa and documented his travels in order to provide slide shows to the local grade and high schools in his town.
Both of those safaris have cost in excess of $30,000 each and like you said the fees not only support the preservation of the animals that are hunted but the animals are used to feed the people.......