I know this has probably been thrashed out whenever that lion (and his brother, who is also a lion) got shot but I'm listening to a really good Radiolab podcast about trophy hunting. They follow the bloke who paid over a quarter of a million dollars to shoot a black rhino. He was designated an aged male, that tend to kill younger males and rape/kill females too young to breed, so a cull benefits the herd.
All the money he paid goes into preservation and, more importantly, gives these...
Hunting endangered species