Because when Democrats and Republicans talk about the "public good" they really mean what's good for their donors and supporters.
We do so little for those brave enough or hard-working enough to take action. It seems that we focus our attentions on those too lazy or weak to move. Those in China fighting for freedom are ignored (as are they in Iran & Afganistan). While those who screech and moan about insufficient government programs to sustain thier "lifestyle" during a hurricane are remembered in round after round of "award winning HBO documentary."