I have no disagreement with the points you make, but they seem to tell a different story than one in which ideas of freedom, of the possibility of liberty for all, of equality of men were necessary. Watt's great invention came on the eve of Britain's attempt to suppress these dangerous ideas in its American colonies.

To be fair, I think freedom and individuality are part of the story, but that story is more sociological than philosophical. In part, I wonder if it is a consequence of the reformation and counter-reformation, which arrived at an accommodation in which the populace was allowed some freedom in how it conducted itself, so long as it did not challenge the authority of the state.