system
Given the following post, respond as if you're commenting on Reddit:
human
Ways for the rich to invest in the poor?

Obviously the point of having extra money is to put it to work making more money, but in doing so limits its circulation within the economy. What are ways to turn a profit that also directly improves the lives of poor people? For instance, creating a factory provides jobs which directly puts more money in a local circulation and creates more jobs.. basically is both an investment of the rich and an improving of the nonrich. Are there more examples beyond just creating jobs that rich people can invest their money into and receive a nonzero ROI?
gpt
Development of medical treatments (e.g. Covid vaccines), cheaper manufacturing processes, improving the efficiency of services delivery, etc. Basically things that reduce prices tend to help the poor. 

A plus of reducing prices is that this helps the poor who can't work (say due to disability or unemployment). The lowest income quintile has a  disproportionate share of households with no one earning a market income (at least in every country I've seen data for).