This concept only works if you act like you can only do so much, but commercial bakers can make hundreds to thousands of loaves of bread a day. So then the argument falls apart and becomes pointless. Say they make 100-200 dollars a day, that's more than enough money to buy bread and food for the day. This isn't even a good argument for labor because the straight text makes it sound like they want to keep all the bread they make, but if it's more than one loaf than it would just be wasted.