By adjusting policy in order to revert those things?
E.g redistribute funds to poorer regions. Enforce equal opportunity hiring for people from those areas. Improve schooling and infrastructure there. Encourange business initiatives. Etc.
You know, it's not like some inpenetrable problem that nobody has ever solved before. Historically, societies have acted and corrected imbalances, creating stronger middle classes.
Rather than talking in generalities, can you give us some specific examples so we can research? Even in the United States, with one of the largest middle classes in the world, we still have a fair number of poor people.
E.g redistribute funds to poorer regions. Enforce equal opportunity hiring for people from those areas. Improve schooling and infrastructure there. Encourange business initiatives. Etc.
You know, it's not like some inpenetrable problem that nobody has ever solved before. Historically, societies have acted and corrected imbalances, creating stronger middle classes.