There's an obvious problem with your argument: in order for wages to support the human dignity of workers, those workers must be able to actually buy things with their wages. The sectors that would have trouble increaing wages due to the limited amount people can pay for them include stuff like food. You're treating the workers producing the goods and the people buying the goods as two seperate groups when in fact they're broadly one and the same, which obscures the fact that the actual end result of your proposal is that people whose economic value falls below whatever minimum standard of permissible human dignity don't get to eat anymore.