What we visualize when we think of hunger is often not accurate at all. Hunger is such a complex problem and what we see is only one small aspect of hunger. There are many factors regarding it that we cannot see no matter what.
Even if we DO see problems within our society affecting this major challenge, most of us are unwilling to help simply because it isn't affecting us. JUST BECAUSE IT HAS NOTHING TO WITH YOU DOES NOT MEAN IT ISN'T A VALID PROBLEM.