As long as people remain under a relative "veil of ignorance," in the sense that they do not yet know how they will personally be affected, they may find it easier to agree that progressive taxes should be used to subsidize low-wage earners.
Autant que l'on est plus ou moins sous " le voile de l'ignorance " - car l'on ne sait pas encore qui sera personnellement touché - il est plus facile d'accepter une fiscalité progressive pour subventionner les bas salaires.