That treatment for an itchy toe managed to reduce hospitalization rates by over 8% and increase high school completion rates (to the point where everyone at least started their final year). There were also indications that small businesses started appearing, presumably because people wanted to keep working yet also wanted more autonomy. The article states that was possible because financing was easier to come by.

There is a possibility that addressing financial insecurity will give people the freedom to address other social ills on their own accord. Yet we will never find out if people keep coming up with excuses to prevent wider scale trials.

Last I check itching cream worked on most parts of your body. Like UBI, being given any amount of itching cream can cure many itches at once.

I understand what you're getting at. It's like you're trying to put out a fire in your kitchen when your whole house is on fire. It would work if you could get it all done at once but not when you try to do it piecemeal.