When Wisconsin started leading the way in Workfare in the 90's with "W2" for "Wisconsin Works" and a play on having a W-2 statement... i.e. a "job", there was initial improvement, however my impression is things returned mostly to the status quo as people worked around the system to carve out exemptions, or the required "job training" became minimalistic etc. or people just shuffled around to finding other benefits, like the big move of people onto SSI/Disability etc.
Or they just moved to other scams, like two unemployed women match themselves up, and fradulently "provide childcare" for each other, and are "employed" as such, in a reciprocal network and collect the state paid childcare benefits while in reality they all just sit at home with their own children and collect the checks.