Businesses where the social cohesion is less will have a hard time since the employees will demand minimum wage. Whereas businesses where the social cohesion is high (I.e. a whole family operates the business) won't be affected that much. I think this is not a intended consequence, but not a bad thing either. The free floating atomised individual will have to pay a high price, where the well connected guy embedded in a extended family won't be affected that much.