I don't think the point is that the transition isn't difficult. It is that there is an overall benefit that outweighs the challenges of the transition.

The sad part is that industrializing societies have not been very good at reconciling the benefits with the costs. The benefits first go to a select few and have seeped out to the masses slowly. Railroads in the US are a good example. The wealth accumulated by the Vanderbilts, Hills and Harrimans, did not get redistributed in any kind of equitable manner. However, everyday people did eventually gain a lot of benefit form of those railroads through economic expansion. (None of which address the loss of the native Americans, whose losses should also be part of the equation.)