alt Hacker NewsThat's not generally true in the US over the last 40 years, where the gains from productivity increases have been accumulated almost entirely by the top classes.
Yes, lower classes have access to many more conveniences then they might have had in earlier decades, but they are working far more hours, and their expected lifespan has started decreasing.
my dad grew up in a house without running water in a town where everyone worked in a mine and the lead was everywhere. he hitchiked to alaska for seasonal work in a fish cannery. Yeah I don't know... i think things are better than they were 40 years ago.