I don't believe true wealth can disappear over night, and we have all seen that happen in the stock market, and probably will again (soonish?). That doesn't mean no one worked for any of that "evaporative" wealth, but does first world labor really deserve such a larger payday than that of 2nd/3rd world labor? This can all get very complicated, and the goal isn't to pin one part of the world against another, so I'll leave that part alone, but my point is that part of the VAST difference in standard of living is partly because of "Monopoly money" rather than us being that much more productive.
A lot of the wealth today has been created out of thin air (monopoly money), to which it might return. Much of the rest of the real wealth (potential energy) has been pumped out of the ground and wasted, some has been used in amazing ways. Only a small percent is currently tangible and sustainable (mostly sun energy, stored and rearranged by creative people in any way possible).
The good news for the poor of the world, is that the sun shines on the rich and poor alike, and the sustainable type of wealth can be created out of what's available. The issue then becomes equitable access to land and education. The education part is quickly becoming free to those who want it.
If your reading this you likely fall into the 1st world, likely overpaid (thanks to massive unpayable debt, due to the perceived credit worthiness of our bankrupt nation(s)) category. While I don't give financial advice, I think it's worth thinking about wealth more as the storage of potential energy rather than a number in a computer.
You might be thinking land or food storage or precious metals, which aren't bad compared to computer numbers. But what truly has the most potential energy, and the ability to harness that energy into more useful forms? I think people do. No, not like slavery, more like social capital. Investing into people and places, so they make your/our local economy truly richer. Everyone has different gifts and skills, the more of a blessing we can be to one another, the less need have for those numbers on our computer screens.
I'm not calling for the abolishment of money, it has its place (though it could stand improvement), but I'm more trying to spur some thought into the things that have real lasting value, and hopefully spur some changes into what we invest our time and energy into. Maybe your current skills are all in handling money "department", maybe you should see what else your good at, on the side. Maybe your rich in skills but not financial resources. Maybe your rich in land, but are tired of managing it all... opportunities abound for everyone. Let's think about how we can make them more available!