They elect the Dems and the GOP ??
To me it looks like human nature.
Tell your kids (if you had 14 like that welfare case) that next Christmas you will put all the presents (say 3 times 14 of them) under the tree and that they are on the honor system to not get greedy and take more than their fair share, and to make the experiment work you plot with one of the kids to start grabbing presents as if he is out of control while the others watch.
By noon the Christmas tree will be down and all the presents will be destroyed after the big fight feeding frenzy.
Human nature DDD. "The presents are running out, so I better get mine fast".
I suppose anything that humans do could be called "human nature."
If so, "human nature" seems to have changed since Reagan.