Exactly! You don't. Your comment seems to imply that they are either getting disproportionately high income from reselling premium steaks (i.e. "not feeding world hunger" = only one person benefits from a large sum of money), or that that the income is very low (i.e. "not feeding world hunger" = you're not making enough money to feed yourself), but the latter doesn't make sense because any positive non-zero amount of money will get you more food than zero money. I don't know if I'm missing another interpretation.