Even in this example where inflation doesn’t occur, consumers will never benefit from the productivity gains that allowed producers to make more apples. Something clearly changed that allowed more apples to be produced. Maybe a significant amount of capital was invested in more machines, or a new, faster growing cultivar of apple was developed. In any case, the entire benefit of the free market economy is that competition creates an arm race for better products at lower prices. When the central bank steps in and creates a bunch of new money, it destroys any benefit of increasing productivity, since apples with always be $1, regardless of whether 100 are produced or 1,000.