Why should it, if the input is skewed? Suppose administrating Harward requires high economics and management skills. Only say 10% if total population has those

Why should it, if the input is skewed? Suppose administrating Harward requires high economics and management skills. Only say 10% if total population has those skills and 1% is black... How do you know if the input is biased? Easy, check it. Then fix the problem at the source if possible.