Jim Collins states the two ways to shape society in his comments on Peter Drucker:
There are two ways to change the world: the pen (the use of ideas) and the sword (the use of power). Drucker chose the pen, and thereby rewired the brains of thousands who carry the sword. Those who choose the pen have an advantage over those who wield the sword: the written word never dies.
This is from the introduction to Drucker’s Management, revised Edition.