Work: Paying Higher For Positions and Demanding Smarter People

There’s this problem in the job market where employers want to get away with murder in terms of paying people as low as they can. The end result is that for certain type of jobs, you create a sort of vacuum in terms of intelligence just due to their nature (e.g. airport security, customer service, etc.) The end result in my view is that the quality aspect still remains poor and customers remain resentful. So nothing really improves. What if we change this premise?