An economist has argued that consumers often benefit when government permits a corporation to obtain a monopoly  Without competition, a corporation can raise prices without spending nearly as much on advertising
The corporation can then invest the extra money in expensive research or industrial infrastructure that it could not otherwise afford, passing the fruits of these investments on to consumers
If a corporation obtains a monopoly, the disadvantage to consumers of any higher prices will be outweighed by the advantages from extra investments in expensive research or industrial infrastructure made by that corporation.