Or find elaborate ways to manipulate the masses and construct a massive army of loyal people to storm all nations and take over the world. No one could overturn me, because I would be very intelligent, performing calculations all the time, estimating probability and being able to evade attackers. The ground will be drowned in human worship and animal sacrifice. Then as Almighty Leader of the world, I could like, go speak at some conventions, or, alternately write a lot of self-help books for new promising galactic overlords.
Imagine how fast one could drive down the US economy, hitting rock bottom in a matter of days.