Industrial progress would undoubtedly be slower under state-control, because the very object of such control is to divert a larger proportion of human genius and effort from these occupations in order to apply them in producing higher forms of wealth.
The richly nourished patriotism of war breeds divisions and antagonisms which are easily exploited afterwards by political, racial, religious, and cultural passions, but most of all by economic interests.
History does not show greed of gain as the motive of the great steps in industrial progress.