If they aren't smart enough to know better though.
I guess it's their fault for not being smarter, but how can you say they are evil people if they don't know that what they are doing is wrong?
I've watched some of these scammer videos and there are people working for tech support scams who think they are actually helping customers when in reality they are actually selling fake products and services for their employer, but they don't know or understand that they are fake.