Here's why:
We've domesticated ourselves.
That simple. The Founders were more "feral" and didn't rely so heavily on positive cooperation with others just to make it through a day. We've been "trained" to defer to authority, to not take the Law into our own hands, and to "go along to get along". After all, we can't all be "Dirty Harry"/"John Rambo" now can we?
Well... yeah we can. That whole "feral" thing is the very basis of FREEDOM. Freedom of action limited only by the equal Rights of others. We've allowed ourselves to see as "normal" all those other laws that are just "for our own good", but that have no place in a society based on individual Rights and responsibilities.
Back then, a legislator/litigator would have been SHOT DEAD for attempting even half of what we take as "normal" in politics today. We've come to rely on a system, that is designed to further perpetuate itself, to fix itself. This is patently absurd, but we've all heard the cries of "vote 'em out", "let the Courts handle it", etc... If any of that could actually work, it already would have.
We've trained ourselves to the collar and the leash and are now whining in our kennel about the unfairness of it all.