The thing is, they're looking for the stupid people.
If you're smart, you might get scammed out of a couple hundred bucks. Maybe in the low thousands if they're very lucky.
When you're stupid, you can end up selling your house to give money to the scammers because you've bought into the scam.
And I don't mean stupid as in low intellectual capacity, I mean stupid as in, you have not been educated on what scams look like, what they feel like, or how they act.