Most of the world is ruled by luck. Where you are born, who your parents, how rich they are, who you know, whether or not someone “better” than you applies for the same position, etc. etc.

Ignoring luck or trying to control for it would be a mistake.

Ignoring luck is a requirement - conditions born from luck may be worth consideration but past luck is not a predictor of future luck.

I'd clarify - trying to ignore someone's education because it's a result of their citizenship or the wealth of their family is going to be endlessly frustrating... but if your metrics can't exclude luck and happenstance during the execution of the task then they're not worth much of anything.