Right, but efficient at what? The answer is almost invariably 'efficient at making money' - that's the whole point; competition normally forces alignment of incentives, wherein 'better' service (for some value of 'better') results in higher income. Thus a business that provides better service is more efficient at making money - the free market hypothesis. When there is a captive audience, as in the case of public utilities, there is no incentive to provide a better service, but the company goal is the same - make the most money - and they are freed up to do it in the easiest way possible, usually by cutting costs across the board and paring down the services to a bare minimum. This is still efficient in the sense that they maximise income for minimum outlay, but it's not in any way desirable for the customers who are forced to use the now crappy service.
