The problem is that "living wage" is such a subjective litmus test. A student living at home and a single mother of 5 have completely different standards. FDR'

The problem is that "living wage" is such a subjective litmus test. A student living at home and a single mother of 5 have completely different standards. FDR's statement was also clearly implied a constant wealth level of the country overall. But you could imagine lots of runaway economic situations were pulling people out of the workforce causes the "living wage" to rise which would require pulling people out of the workforce until you just do not have enough economic productivity to support your population (which is kind of a version of what Venezuela went through).