I've occasionally toyed with the thought that political duty should be managed in a similar manner as jury duty. (One of) The problems with political represent

I've occasionally toyed with the thought that political duty should be managed in a similar manner as jury duty. (One of) The problems with political representatives is that they _want_ to be politicians. Either as a means to an end, or as a mechanism to better serve themselves or others like them. On more rare occasions you find the occasional altruist. Since there's a selection bias going on, how can the current crop act as representatives of their populace when they aren't _like_ those they claim to represent?