Politicians have a lot of power in society. How much good could a politician well-acquainted with x-risk do? One way such a politician could do good is by helping direct funds to MIRI. However, this is something an individual with a lot of money (successful in Silicon Valley or on Wall Street) could do as well.
Should one who wants to make a large positive impact on society go into politics over more "conventional" methods of effective altruism (becoming rich somewhere else or working for a high-impact organization)?
Sam Nunn was a US senator who wanted to buy surplus nuclear weapons from Russia, rather than risk them wandering off. He was unable to convince the rest of the government to pay for it, but he was able to convince the government to let Buffet and Turner pay for it. He has since decided that he can do more to save the world outside of government.
Added: But, he was rumored to be Secretary of Defense under Gore. So he thought some positions of government were more useful than others.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.