You seem to have some kind of weird notion about what a good king is and does.
A king doesn't do much on his own except make final decisions based on his convictions.
I'm not talking about a violent, tight-fisted control freak. I mean a God-fearing, righteous man who loves his family deeply and desires to see them succeed in ways that he never could, bestowing on them a foundation of truth, skills, and strength to overcome the crappines of the world. To be a peacemaker. To be joyous in the growth of his family. To give his all for them without reservation.