What Martin Luther did to the Catholic church needs to be done to business gurus.
The similarities between medieval Christianity and the world of management theory may not be obvious, but seek and ye shall find. Management theorists sanctify capitalism in much the same way that clergymen of yore sanctified feudalism. Business schools are the cathedrals of capitalism. Consultants are its travelling friars. Just as the clergy in the Middle Ages spoke in Latin to give their words an air of authority, management theorists speak in mumbo-jumbo.
Read this interesting article from Schumpeter at "The Economist"