In reply to tyelmene.

If we do not address wealth distribution, then we won't be able to address other issues, such as climate change or environmental degradation. We need people who have the time to think about these issues. This has traditionally been the middle class, but it is shrinking. For example:
http://www.cbc.ca/news/canada/toronto/toronto-2025-the-disappearing-three-cities-1.3007058
Without an aggressively engaged and intelligent citizenry, in significant numbers, we are doomed.