Once it’s dead and out of the water, no amount of guilt will bring it back and if you don’t buy it, someone else will. At least it wasn’t a dolphin or a whale.
I know it’s a delicacy raw, but I don’t like it. We get it here a lot, a friend fishes them and always gives us a huge chunk. I lightly fry it otherwise it goes dry, but it’s not my favourite fish. We marinated the last lot which added a bit to the taste. My absolute favourite is the Tsipoura and Lavraki, fried or grilled with skin on and on the bone. Drool!