After thinking about such large challenges for a while, I’ve concluded that money alone isn’t enough. Money solves money problems, too much money flowing in the wrong direction solves nothing.
West coast US cities are a perfect example of this, not enough housing means labor resources are constrained which is the biggest input for actually getting things done (fixing problems, creating value, etc).
Overall I believe that free and good(!) basic education independent from status and location is a solution for many problems but it seems that as more capitalistic a system becomes as less incentive there is to actually educate and teach the population.