Private companies set the criteria for infrastructure investment and management as did the railway companies in the 19th century. Places that do not meet their criteria do not get networks. Governments cannot maintain a sensible cost structure in the face of private competition. As a result, places either have a private network or they have nothing. The corporate world operates in its own short-term interests to exploit untapped markets.
Companies move to export their brands and services as fast as possible.
Most developing countries also act in their own short-term interests. They erect protectionist barriers such as import tariffs. They take a passive view of global markets. The global corporations exploit urban markets, but do not seek to develop mass markets and do not try to respond to local needs. Self-interested elites become more prominent.