And no, I wouldn't want a company that reflects the demographics of my city. That would mean no black people and mexicans do all the cooking. :)
Levchin is free to run his companies any way he wants, inside the law, and he's done amazingly well. But rejecting people who simply use an odd phrase once is, to me, not a example to celebrate, especially in a course for students.
"I did this and succeeded" is not equal to "everyone else is wrong". Creating a mirrortocracy is equal to claiming "I am right, all the time, and I do not require outside opinions. All I require are clones." That's a pretty heavy bet to make, and its arrogance is not excused by success.