Love it.<quoted text>
The products of great "civilizations" have been exemplified by intelligentsia with time on their hands. Greek, Roman, Chinese, Mayan, Minoan, Egyptian, to name a few, were all advanced with slave labor.
Your examples paid their 'slaves' room and board, money, whatever, but it freed up their time. Even though they didn't hold the literal power of life and death over them, the premise is the same.
<makes fist, extends middle finger>
Sounds like another famous Indian character: Dances With Wolves, Stands With Fist,....Makes Fist, Extends Middle Finger