If no changes are made in Indonesia the impact that it would have on their country is health care giving the idea that many people will suffer from lung cancer. As well as pollution that cigarettes and in general the smoke could affect young adults or younger children. There would be a lot of serious medical cases that would affect a lot of people.
My statement would probably go something like this, "I'm sorry for hurting your feelings, but I was just joking. I didn't mean the things I said and I'll be careful about what I say from now on."