As countries get richer there is more and more affordable education. In other words, higher job productivity from those who can get jobs means higher contributi

As countries get richer there is more and more affordable education. In other words, higher job productivity from those who can get jobs means higher contributions to help those who can't. And even if one doesn't have a high-level education, being "poor" in a developed country affords a better lifestyle than being "middle class" in that very same country a few decades ago. In other words, the same minimum wage dollar buys many times more goods. The cost savings spread everywhere - hence post-scarcity.