I sense your frustration and I think they were probably being a bit sarcastic... I won't speculate on a loaf of bread, but I would speculate that everything from a loaf of bread to a home increases in price substantially if minimum wage were raised to $60. As wages increase, prices tend to follow, since workers across the spectrum demand higher pay.

I'm not against raising minimum wage, but economics is a very complex thing and changes like that need to be approached carefully.