The representative democratic ideal is ultimately revealed to be a fiction, and the rule of law is a falsehood - for without a universally applied rule of law, there is no rule of law - just authoritarianism - and our rule of law is decidedly not universal, and never has been. One set of rules for us, one for them.
All representative democracy eventually declines under the same disease of creeping authoritarianism due to the inevitable desire of entrenched power structures and bureaucracies to self-sustain and expand. This should not be mistaken for malice, rather it's the inevitable output of a system optimised for self-preservation.
The only solution to my mind while maintaining a democratic ideal is either strict sortition, or direct democracy.