The best example I think is computing. The advent of the personal computer made computing available to the individual. I see the term "commoditization" used in conjunction with the idea, but that seems to focus on the economics, not the idea.
For example literacy used to also be something restricted to a privileged few, but has now become available to the common man. I don't think we would say literacy has become "commoditized" in saying it is now something available to the average person.