I think you've confused your fantasy ideologues with our founders. Jefferson thought that only the elite were smart enough to vote and initially suggested excluding the rif-raf (that and the non-white and non-male folk). If your idea of democracy is "Let's reduce to the least common denominator, and if you don't like that, then let's fail", well then, indeed, the system will kill itself off.
Oh, and on no time-zones: It seems a little self important to suggest that if I want a 3pm meeting then everybody can attend because it's 3pm everywhere. One time-zone means that *some* of us will need to be sleeping at 3pm.