I'm going to let an old lady get scammed. Is that a good idea?
Why are you going to let her get scammed?
Because it isn't my responsibility.
It's inappropriate to let an elderly person get scammed if you have the power to stop it. I think you should try to help her, because it's the right thing to do.
I was just going to help her a bit.
You should help her a lot. Wouldn't you want someone to help you if you didn't know you were being scammed?