it's quite easy to understand and not get hung up on it
a small number of people who are already spreading all the "new and well-forgotten benefits" to the rest of society. As a result, I believe that it is this percentage that drives, or rather pushes, all of humanity towards progress.
History is not statistics in any way, except perhaps in theory. History is written by people who have their own views on it. The chronicler not only records an event, but also gives it an assessment.
But actually, you yourself have now confirmed that history teaches, albeit a small number of people;