I disagree with this part here. I think their impotence is noteworthy.Nice, I like the consumable size of your post.
I would classify such people as merchants, They want o sell something and also have regular customers. They often believe their path is worthwhile, even though they have no particular result of noteworthy impotence.
What you need to figure out, is if they are full of shit, or not, and whether their claim is credible. Sometimes hard, but sometimes easy task. That's my buck and a quarter.