Not HR, just sharing my personal data collection

Like you said, 'use in place' employers also know that there is a way to quantify. The easiest way is to look for the number of A and Bs. It's not difficult at all. NTU used to host private recruitment drive for certain companies and got slammed, however it takes two hands to clap.

these days there are other weighting such as psychometric test, personality profiling, and performance interview. These tests are mostly done by American firms that have the resources and understand that a bad hire is a huge waste of resources.

Sometimes companies have very high turnover and no lack of candidates to take the bottom jobs, so they just welcome many candidates and let attrition take care of finding the best person. fairer than some strange test I feel.

Finding job like finding spouse, needs some element of fate. Positive thinking and attitude goes a long way.