Yeah, so far we don't have any good solutions for the propensity of power to consolidate. Similarly Madison presumed people in office would be rational and naturally inclined towards serving the common good, but also that the voters would know their own personal best interests and vote accordingly. History would quickly demonstrate otherwise.

As I said, I'm not a political scientist, and right now, if we could revise our elections there's a handful of basic changes we could make to improve things and give the public more power. But we're going to need sociological tricks we don't yet have to erect a society that doesn't succumb to corruption over centuries (if not decades). We naked apes aren't really meant for huge societies, and knew we were treading on dangerous ground when we first started seeing the fruits of agriculture.

That said, CIA experts and Christian Sociologists (desperate to see their faith not get shredded in the next few eras) warn that if power is not disseminated back to the public, we are likely headed towards civil war within the next five to ten years. These will be interesting times, and if history serves it might be decades before we see a stable normal again.