When I read about ancient (republican) Rome, I used to wonder how much their having an off-ramp from power contributed to their stability.
In many of the contemporary cultures (e.g., the post-Alexander greek kingdoms), being toppled from the heights of power would result in exile, imprisonment, or worse; in the republic, you could lose a battle as a general or step down from being consul and still lead a peaceful life afterwards.
One could argue that the change in this situation in the late republic directly resulted in it's downfall--Caesar crossed the Rubicon because he feared prosecution and imprisonment by his opponents once he lost his proconsular immunity.
In many of the contemporary cultures (e.g., the post-Alexander greek kingdoms), being toppled from the heights of power would result in exile, imprisonment, or worse; in the republic, you could lose a battle as a general or step down from being consul and still lead a peaceful life afterwards.
One could argue that the change in this situation in the late republic directly resulted in it's downfall--Caesar crossed the Rubicon because he feared prosecution and imprisonment by his opponents once he lost his proconsular immunity.