As Andrew Breitbart said, politics is downstream from culture. We have corrupt leaders because the people themselves are corrupt and depraved. We were fornicating, aborting, divorcing, and sodomizing way before they became legal and it was the grassroots pressure that forced these laws to change.

In the Roman Republic, to a large degree independent generals, i.e. Caesar, was able to overthrow the Republic because the Senators and public officials themselves had become greedy and degenerate and the historian Suetonius mentions that it was due to the general depravity of the people at the time.

As John Adams said, the Constitution was only meant to govern a moral and religious people. It is incapable of governing over depraved men. A Republic only works if the people are moral because moral people produce moral public officials. But if there are no moral public officials to be found, then the degenerate people will refuse to obey degenerate public officials. The Republic will fall and a strong-man dictator will be required to restore order.

History repeats over and over and over.