A merchant of death

I bought a carton of tobacco for the first time in my life. I have never smoked since I almost died of smoke when I was a very little child. My Japanese friend living in Vancouver asked me to buy and bring it, but he doesn't smoke either. Both he and I do not smoke, and what happens to the tobacco? He says he can sell it for 50 dollars in Canada which I got at 1,700 yen in Japan. As one dollar equals to 100 yen now, he can get a margin of 30 dollars! He is nothing but a merchant of death, and I have helped him. Forgive me!