I would ask you whether or not someone who is unable to produce enough value to sustain even their own lives is entitled to the products of those who are able to sustain their own lives? Do you believe a market wage till tend to be unfairly decoupled from a workers marginal revenue product in a free market society?
If a worker accepts employment in which he does not receive a high enough wage to sustain himself, then he's an idiot. A worker should only accept employment in which he receives a high enough wage to sustain himself. If all workers do this, it creates a natural minimum wage floor.The minimum wage floor gives the job seeker some bargaining power, in a sense.
you may be missing the point that it is in the interest of some workers to work for a wage that is not high enough to sustain themselves. Imagine a teenager who has all of his needs met by his parents and gains valuable work experience from the low wage job.
More aged workers who need a higher wage to sustain themselves would have to differentiate themselves from these teenage workers in order to compete. Experience would be the large factor here, perhaps with ability to work a full-time, non-flexible schedule being a close second. Those are valuable traits to many companies wishing to hire, traits for which they very well may be willing to pay a significant amount higher to attract non-teenagers to the positions.
