Perhaps even more radical is that has shown that sometimes huge social changes can happen very quickly. How long did it take for 100s of millions of people to adjust to a very different style of social interaction and way of doing business? 6 months? 3 months? In some places even less.
It shows that, if the majority of people think it necessary and beneficial, very large changes in society can happen - quickly, in a cooperative way and largely without violence.
Both of those considerably undermine conservative, capitalist world views.
Nice!