"why not take that time to toss in some viagra information for you to listen to"
Now you're just being silly.
"if you don't care about them, then let these scammers have their fun, what do you care?"
Oh, it's FUN! Scamming vulnerable people out of money is FUN! Scaring the shit out of some grandmother and then scamming her out of most of her food budget for the month is FUN!!! Can I have your grandma's number? It's all in fun...