The general public is surely flawed in a variety of ways (as are politicians, in the same ways and others), but a well written system could highlight these shortcomings, and we could work on addressing them over time.

It wasn't all that long ago that basic reading and arithmetic were beyond the majority of people, but we recognized that and took steps to remedy it, with some decent success.

Deploying such a system into production would be a long, careful process, running it in parallel (with no power) to simply measure public sentiment would be extremely informative, and it would also get the public thinking seriously about things...simply using a well designed system would make them smarter.