Aren't you assuming that all you can do to protect your 50k is vote? And that all votes are independent? What if you could spend 25k mobilizing your side in the election? Or running an issue ad? You gain it all back and then some.
Taleb's talked about chasing activities where the black swans are positive: http://akkartik.name/blog/9400292
Why is there no net neutrality bill? The rich are overrepresented in our system for a reason. Sad but true.