I think that what the other posters are touching on is: why sell bread at all? Why not sell beer? Or ethanol, to gasoline companies? You have a source of flour, and you also have access to customers who are deriving their livelihoods from your product. If the bread market is tapped out and too competitive to make a profit, why not turn around and seek other markets?

In my experience, consumer mobile is pretty much tapped out - it's very difficult to make a living as an independent app developer. But the enterprise market is still booming. Now that the giant consumer applications (WhatsApp, Instagram, Uber, Instacart, etc.) have been found, there's a long tail of smaller niches that'll pay good money for specialized services.