It doesn't, but it makes it harder for all the low-wage workers competing for a spot. Since the minimum wage sets a price floor on wages, the spots become more exclusive, and to justify it, you need to have good traits. Like I have explained, the traits are limited by restrictive labour laws, so it will just increase the degree of discrimination.
For employers it's great. They get a wider choice of applicants. They can hire an array of hot chicks for their checkouts, or a white team for the racist employer, since there can be no difference in terms of wages and working hours. Meanwhile, those who may not be white, or hot, will suffer. They don't even get the choice to offer their services at a lower price!