IoW, part of the plot here is to avoid the Welfare Trap, where you make more money staying on welfare than getting off of it, up to a certain amount.  Making and (profitably) selling cheeseburgers or something generates more value than sitting around, meaning the base wage before subsidy is higher, so the total pay is higher.

We can start by lowering the minimum wage some and adding the subsidy some and then seeing what the level of wasteful behavior is and just how much load we’re putting on the economy.  We can then increase or decrease appropriately.