The challenge to the idea of hiring the most competent person (I know you didn't specify "most"), is that people from disadvantaged backgrounds may not have had

The challenge to the idea of hiring the most competent person (I know you didn't specify "most"), is that people from disadvantaged backgrounds may not have had the opportunity to become competent at them due to systemic oppression. What I generally don't see discussed is the hard part of the problem. A business should do their best to hire the best person to complete a job, but how do you do that while bringing up disadvantaged people so they have a fair chance to compete?