It's the dumb voters and the smart people who are too lazy to vote that are the problem with American politics. Not good people who run for office and get elected, or lose to people, because they didn't have the funds to fight back against very skillfully attack ads and, well bullshit that was thrown at them from, well a bastard politician or candidate running against them. A crooked candidate or politician's path to victory is the stupid vote. "If I can win the stupid vote and discourage smart people who know what I'm about and what I'll do if I win from voting, I'm home free.
The stupid vote and stupid people in general the morons of the month club and their fellow members are what keeps crooks and liars in office. But the worst arch enemy of the crooks and liars are the smart people who know the crooks are crooks, but feel their votes may not count and the crooks will find a way to get elected and reelected anyway. So you get the smart people to vote, now the crooks and liars have a real problem. "Now not only the smart people are voting and know what I'm about and what I have done, but all I have for a line of defense are morons to defend me!". The better educated a society with the most educated voters possible who actually vote, the fewer crooks in the system.