Why is there a concern for alien employees to be paid the prevailing wage of the particular job?

Question

Quizplus · Accepted Answer

The concern for alien employees to be paid the prevailing wage of the particular job is both to avoid employers hiring aliens at cheaper rates, which could lead to displacement of U.S. workers, and to avoid exploiting the fact that many aliens are willing to work for low wages. Ensuring that alien employees are paid the prevailing wage of the particular job helps prevent employers from hiring aliens at cheaper rates and displacing US workers. It also prevents the exploitation of the fact that many aliens are willing to work for low wages. This is why both options A and B are correct.

Why Is There a Concern for Alien Employees to Be