Italians Acting Shadily? Really, You Think?

Italians are "shocked" that some Tuscan winemakers may have been illegally blending their brunello wine with other grapes to make it more pleasing to American tastebuds. Why, exactly, are they surprised? In the last two years alone, Italian soccer teams, mozzarella makers, politicians, etc. have all been shown to be shady. They should be shocked if there wasn't shadiness.