Even the most pessimistic view suggests that real wages grew, especially after the conclusion of the Napoleanic Wars. [1]
> The real benefits from industrialization were realized after hard political changes.
The real benefits of industrialization were immediately realized via mass production of widely desired and previously unobtainable goods. This should be clear from migratory patterns: workers abandoned the countryside en masse (in spite of city living/working conditions) for a reason. Enclosure laws were not a major factor until 1845.
> You don't create middle class from mid 18th century society.
Of course you do. The rise of the managerial and professional classes is a direct consequence of the Industrial Revolution.
[1] http://www.nuffield.ox.ac.uk/users/Allen/unpublished/pessimi...