From the summary: Of course, this begs an important question: Are educational videogames a good idea?
That question is neither important nor interesting. Of course educational video games are a good idea, to the extent that they serve the stated goal of education (and to the extent that "education" refers to something worthwhile like training self-sustaining, productive, and independent people who are simultaneously compassionate and want to better others as well as themselves).
A question which is important is whether video games which train kids to be "leaders" in the hierarchical sense is a good idea. The western world dearly loves hierarchy and order-following, but history and a little critical thought quickly demonstrate that hierarchical control structures are ineffective at meeting people's needs and improving the lives of the many. They're highly effective at meeting the needs and improving the lives of the people at the top, though.
The problem I foresee with this game is that it will probably treat "the people" as mindless animals who do as they're told -- who don't have their own hopes, dreams, goals or passions which are out of line with those of "the leader" -- which is not how reality is, nor is it how reality should be. It trains children with the mindset that the world naturally divides into two categories: Me (the agent of control, with goals and desires), and Everyone Else (pawns to be manipulated into furthering My goals and desires). This worldview won't be promoted loudly by the game, nor will it be highlighted. It'll just be assumed context. But will kids be able to identify and reject that harmful worldview?