Within the Principle framework, social development is primarily seen to be a product of lineage development. If our children are a bit more wholesome than we, then future development is assured. Many parents in the movement are incredibly proud of the remarkable gifts their children embody. The Divine Principle notes social improvement occurs when development happens inside any of the three blessings.
But social improvement based on lineage improvement takes time.
It takes time for individuals to grow so that they can then enter the world and improve the education system, the health system, the legislative framework, the media, the national infrastructure, the way businesses are run, the products companies can make, medicines, the kind of help charities might provide, and what religious communities may be able to offer to the faithful and others — all as a means to improve social outcomes in the next generation.
For example, it took time to develop the education system in the West. But, eventually, each generation grew up to be slightly more skilled than the last.
As this happened, each successive generation typically became slightly wealthier and more capable of protecting itself from the ravages of life. Through taking this natural pathway, the West slowly but surely developed.
However, some can get impatient with this natural law. They might insist that social development should happen much faster, primarily through state intervention. Sometimes, new technology allows for this to happen. But often there is no way to solve a social problem other than for the whole of society to work together to improve the level of wholesomeness of the children we bring into this world.