When filling a position in an organization, the hiring manager is looking to find the best candidate for the job. She is not looking for the most deserving candidate for the job. Neither is she looking to even some perceived ratio of some undeserved population. That is, maybe there are fewer long haired hippies in the corporate American culture than in the general American culture; it’s not the job of the manager to correct that woe.
Rather, she is looking for the candidate best suited for the job. And to that end, she can, and should use, any tool or “discriminator” she has at her disposal.