Pretty awesome suddenly these guys want businesses run like Henry Ford did.
The $5-a-day rate was about half pay and half bonus. The bonus came with character requirements and was enforced by the Socialization Organization. This was a committee that would visit the employees' homes to ensure that they were doing things the "American way." They were supposed to avoid social ills such as gambling and drinking. They were to learn English, and many (primarily the recent immigrants) had to attend classes to become "Americanized." Women were not eligible for the bonus unless they were single and supporting the family. Also, men were not eligible if their wives worked outside the home. Other groups also offered classes to help immigrants and southern blacks adapt to the Detroit area, but none were so prominent as the Ford plan.
The truth is that manufacturing jobs have a ton more value-added than retail. So there's a lot more margin for higher wages. Big-box retail is essentially a commodity business. Price drives everything in retail, so wages will always be as low as feasible.