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.

You can literally get a 1:1 model of capitalism by modeling luck alone. To ignore it is to pretend that you have some kind of control of luck.