Playing devil's advocate: because the chance of winning the lottery is a big motivation...
This whole concept is like saying, well, one guy decided to do the things he loved, go to baseball games, get drunk with his buddies, and watch copious amounts of TV. But this other guy spent 8 years educating himself and working his butt off accomplishing many things. Let's reward them equally because they both grew up in the same town thus should have equal outcomes.