If they really cared for the poor, they would diversify their investments both geographically and across many sectors of the real economy in order to restructure it for better efficiency.

What they do instead is that they boost their PR image and invest it in the "next big thing" like driverless cars, augmented reality, etc., and these endeavours often fail in a few years time, effectively wasting the capital and disproportionally enriching the selected few.