There is nothing wrong with expecting hard work to pay off. And some people don't work hard. And some people don't create much value for the work that they do. And some jobs are low level entry work for unskilled labor just starting in the work force. And some jobs are for people with families while others are not.
There is something wrong with Sander's assumption that the federal government should have any authority or right to tell people who work in the private sector what they should or shouldn't pay or make. Especially under the penalty of the law. And especially regardless of other circumstances.
If you ran a company you would bitterly resent the federal government threatening to fine or imprison you for not paying someone more than you could afford to pay them.
And the phrasing of Sanders' statement is such that if you disagree with him, he would respond with something that would suggest you are for people living in poverty. It's a rather cute public relations propaganda trick to make you think that the federal government should dictate wages when all they want is the power to control the votes of the People while using the poverty issue as leverage.
There is one thing, and only one thing, that Bernie Sanders wants. His power to control your life. And he gets that by playing the poor against the rich, just like any other communist who ever wanted to be a tyrant. In the end, should he ever get his way, he would use his power to stab you and the rest of those who he considers peasants in the back.