Medici famously used Galileo Galilei to teach their children. And countless other powerful men made sure their kins are taught by the brightest minds. I think

Medici famously used Galileo Galilei to teach their children. And countless other powerful men made sure their kins are taught by the brightest minds. I think at the very top this works out. OP may be right in his conclusions but they apply to upper middle class, not to the richest and the most powerful.