Good, you've all been active.
While Plato's ideas are deeply flawed, they form a primitive skeleton for an altogether different form of government. One for which I don;t really have a name.
I believe that the average person wants no more than the freedom to work productively to better themselves, the peace to raise a family, and the prosperity to enjoy some luxury. If these needs are met, then most people will be content, and will not seek too much more, but in order for these need to be met, one must have good governance. What I propose based on Plato's ideas is a government composed of the very best and very brightest, and one in which those with power are reluctant to accept it. Any who seek to higher position becomes immediately inappropriate for it.
This class of leadership would be raised by the previous generation and instilled from an early age the importance of the people over themselves. Candidates for such a class would be drawn from all sectors of the people based only on the potential of each child. To offset the responsibility and rigors of such a position they would live at a higher point of luxury than is common, but only enjoy such luxury when they are not actively governing.
To ensure the proper behavior of such an empowered class, a third class of watchers would be created whose sole job would be to constantly evaluate the work and governance of the leadership class. The watchers would likewise be educated from an early age primarily in ethics and other useful studies in order to properly evaluate the leadership. In order to prevent co-opting of this class, they would also enjoy a certain state of luxury, which they are guaranteed, so long as good governance is maintained by the leadership class.
Obviously this is a very rough sketch.