If he or she is successful, others will imitate and follow. Now ordinarily we expect the marketplace to be self-correcting. That is, that the marketplace will correct flaws in the knowledge of producers and consumers by entrepreneurial trial and error. But if barriers to entry are high, then the marketplace loses this self correcting mechanism. Parts of the market, or the needs of specific groups of consumers, will be left unserved until the existing market participants find the new opportunity.
Consumers are less likely to have adequate service.
To take the extreme example, in a monopoly, it is the monopolist's perception of who is going to be lucractive that will drive investment. If the monopolist believes that minorities won't buy cable service or Internet access service or telephone service, the monopolist will be less likely to invest to serve the minority community. The monopolist's perception becomes the reality of information access. But if we create a competitive market environment and lower the barriers that have kept minority entrepreneurs out of the marketplace, then the picture changes. If markets are open and we can lower entry barriers, minority entrepreneurs can help narrow the digital divide.