Public officials must lie to get into office. STEM backgrounds are unlikely to be willing and/or able to lie efficiently.
I'll have bug fixed by Friday
Also, STEM backgrounds are much more common in other countries. It's moderately quirky that so many US lawmakers are lawyers.
Has no one else mentioned this on LW yet?
Elizabeth Edwards has been elected as a New Hampshire State Rep, self-identifies as a Rationalist and explicitly mentions Less Wrong in her first post-election blog post.
Sorry if this is a repost