[yodsanklai]

Yes, more training will invariably give better outcome for a given individual. But some people are just incredibly more talented than others due to genetics alone.

If you want to build an elite sport team, I don't think you want to artificially put less athletic kids for the reason they had to work harder.

I think the question is why do we need elite higher education at all. Maybe we don't. In my view, we want to funnel the brightest people there and make sure they get access to the best resources.

[cauch]

That's the point: people with more training that reach high grade are LESS GOOD than people with low training that reach lower grade.

You are saying that you don't want less athletic kids being accepted artificially. That's exactly the point: the score does not correspond to the talent, you have to correct for it: to compare 2 persons on their merit if they have had different training, you need to calibrate to get a variable that correspond to the merit.