He doesn't, because he would quickly loose all his business to the competition, and if there was none, there quickly would be - unless government force provides him with an artificial monopoly.
"It is not from the benevolence of the butcher, the brewer, or the baker, that we expect our dinner, but from their regard to their own interest. We address ourselves, not to their humanity but to their self-love, and never talk to them of our own necessities but of their advantages."
- Adam Smith, An Inquiry into the Nature and Causes of the Wealth of Nations
He doesn't, because he would quickly loose all his business to the competition, and if there was none, there quickly would be - unless government force provides him with an artificial monopoly.
"It is not from the benevolence of the butcher, the brewer, or the baker, that we expect our dinner, but from their regard to their own interest. We address ourselves, not to their humanity but to their self-love, and never talk to them of our own necessities but of their advantages."
- Adam Smith, An Inquiry into the Nature and Causes of the Wealth of Nations