She's absolutely right. Consumer demand creates jobs which is not directly in businesses control.
Actually, precisely the opposite. How much demand was there for iPhones, before Apple invented them? (Or, for that matter, how did the fact that iPhones were being supplied affect demand for Blackberries?)
Introducing a supply of a good or service reveals consumer preferences and spontaneously creates an efficient market in that product. As a corollary, artificially restricting the supply of a good or service conceals consumer preferences and transfers demand to less-preferred substitutes. For example, the East German government created artificially high demand for its government-produced "Trabants" by artificially restricting the supply of all other automobiles. When those restrictions were removed, demand for Trabants instantly fell to its market level of zero, except as a novelty item.
There may have been, hypothetically, a high latent level of demand for iPhones in the year 1997, or for VW Golfs in East Germany. But that hypothetical demand could not possibly have created supply, because it was not possible to supply the hypothetically-preferred items. Price signals are revealed by supplying a product or service; the fact that there might be hypothetical demand for a product or service tells us nothing about prices.
