Your perspective is consistently too black and white. No one in this comment chain has once said that this should not be allowed. At most it's been said that paying poor people to take trauma is concerning. Your response has consistently been "How dare you say poor people shouldn't have these jobs? These jobs are great!". You're trying to make it black and you white, when it's neither.

If your argument was "These jobs probably will scar some people for life, and that's troubling, but I do think the overall gain in welfare will likely outweigh that", then no one reasonable would be arguing with you. As it is, you haven't bothered to include this nuance, or even once admit or consider that some people could be made worse off overall by these jobs, even if perhaps most aren't. It basically just sounds like you want to see fewer "low IQ" poor people and you aren't really bothered how they feel afterwards. I'll say again, exceedingly many people have all the things you said are required for happiness, and still aren't happy. And that is usually due to trauma, the very thing we're talking about.