So as a foreigner what I don't get tis shouldn't not getting paid the fair wages drive down demand for these kinds of jobs? Am I in the minority in beleiving t

So as a foreigner what I don't get tis shouldn't not getting paid the fair wages drive down demand for these kinds of jobs? Am I in the minority in beleiving that customers will pay what they are charged upfront instead of extra sneaky costs. (Btw I will definitely tip for exceptional service but I think bringing me food and not throwing it on the table is kinda bare minimum:) )