The world cannot afford any longer to leave areas open to lawlessness and barbarism simply to let them some day become civilized and safe. As failed states, failing states, and areas without any law and order; without any government continue to grow, the UN must begin to consider itself taking on the duty and responsibility of helping the people in those areas to build legitimate states.
This will not be simple, cheap, or quick but the world pays the price for doing nothing with these areas as terrorists use them for safe haven. These areas have become tumors in the world that continually metastasize, spreading the disease of death, violence, hate, and suffering throughout the rest of the world.
Any new territories that come from such nation building efforts as well as every other nation should at a minimum accept and adhere to the The Universal Declaration of Human Rights
For a list ranking all states by multiple factors in terms of stability see THIS page.