I guess this might be true if all goods are commodities but if you look at the details pretty much all goods aren't. If you make a pair of shoes that lasts twic

I guess this might be true if all goods are commodities but if you look at the details pretty much all goods aren't. If you make a pair of shoes that lasts twice as long and looks twice as good, you can charge twice the price and people will happily buy it and that's a good thing.