Shark finning... What is the point of it???

I went to Auzzie and got myself a free mag. Good mag 2, its called the Paws and Claws mag and its only from good petshops on the Gold Coast of Australia. It was a good mag but one of the articles made me understand the horrible plight of Shark Fin Soup and the animals that happened with it. Sharks are the top ace predator but in some parts of Australia and all of Asia there have been people culling sharks and killing them by chopping off their fins and leaving them for dead in the sea, by letting them bleed to death or maybe by sharks coming up and doing what they do best, eating injured sharks. Thank goodness they dont serve Sharkfin Soup in New Zealand or America. What have sharks done to deserve this???? Some sharks hurt people but most havnt, for example the Carpet Shark. U can help 2 by not buying shark products and not eating Sharkfin Soup. There are other issues that I will discuss with u later such as the plight of the Turtles k because Sharks arnt the only ones who r being harmed by the plight of us humans.