If the government changes laws, like a ban of smoking and drinking, this can raise the life expectancy from 80 to 90.
What come to mind for me is the Cold War. America was fighting for equal rights in eastern Europe and other places under Soviet/Communist infulence, and yet there were not equal rights for every one in America, especially for African-Americans in the south.
Wealth and income it produces within the global system. What would make globalization unjust is if the process depends on coercion, corruption, and fraud. * Yes, globalization is unjust, because the benefits of global cooperation are enormously biased to favor the interests of the rich and powerful.