@burcinc-- I agree that sometimes businesses do break ethics policies for their advantage. But I also think that we have some of the most ethical businesses and institutions in the world. First of all, there is usually fair competition in the market and businesses are required to treat their employees and customers fairly.
If a business is not following ethics, I think that the consumers give the best response by simply not purchasing their products. No business would want to lose customers, so it's in everyone's best interest to do things fairly.