I love these cartoons because some of them have so much to unpack that you don't even know where to start. This one instantly reminds me of a begging tactic I've heard practiced in India where they'll burn a child's eyes with acid so that people feel worse for him and give more money. It's manufacturing an issue to get more charity. It's horrible, yet there's also a weird grey area that gets created from it. The person still deserves money after all, right?
In this case we see how we tend to judge victimhood, or have a hierarchy on who deserves our charity. In realizing that someone without any legs deserves more charity than someone with one leg, we forget that the person with only one leg needs help as well. We're so into comparing people and situations that it does more harm than good.