Unnamed Friends and Acquaintances of Monaghan

In "Ad Astra" Monaghan's father's wealth enables his son to attend Yale and to become acquainted with well-to-do people. The senior Monaghan charges his son to remind these "fine friends," these privileged individuals, that "every man is the slave of his own refuse" and that "your old dad," who made his money working with sewers, "is the king of them all" (415)