There are thousand of modern circumstance that the founders had no way of knowing, let alone set a course of response for government.     This false idealization of the founders would be found appalling by at least some of those men, in particular Jefferson who called for a regular scheduled re-write of the constitution to update it to modern circumstances.

We have men and women, in American, that are every bit as bright as the first congress.   Those men were not Gods, no matter how much our country wants to believe  'God',  is on our side.  Human development was not suddenly stopped in 1776.    

I suspect the problem is that really bright, wise, men and women of character, have very little reason to subject themselves to the modern political quagmire.  (let alone the money to apply to the millionaires club)