You can nit-pick about the description of the rich man as much as you like. But I think this cartoon, overall, frames the situation extremely well: The rich and powerful are making a killing (literally) through oil speculation (which is not all that different than the gambling table), and no matter how the dice rolls the rich win and the poor lose.
G8 France, United States, United Kingdom, Russia, Germany, Japan, Italy and Canada. those are the richest countries with highest industries around the world in addition to "+5" countries which are the highest developing countries Brazil, China, India, Mexico and South Africa.
all other countries cannot be considered as rich due to the VERY LOW GDP = gross domestic production
It would also be wise to take into consideration that countries with mostly "white" populations have developed faster (due to empires seeking out new lands in the past, and industry mostly) while other countries have been taken over in the past by these countries, thus the time these countries have had to gain wealth hasn't been near as long as countries with "white" population (most of these countries weren't entirely fair to those who they conquored and warfare has broken out because of this, that also tends to set things back as war can be very expensive in more than one way). I think the US is a bit of an exception, mainly because of the ideas of freedom and democracy were people at the bottom of the "class scale" had more of a chance to move up, while in other countries monarchy was still the story (they caught on, i.e. French Revolution). Give those developing countries time (China, I'm looken' at you), I'm confident they'll catch up quick. I really don't think you could consider Chinese or Japanese "white" as they're not of Europian decent. So I think the 100% is a bit of an exageration. But the countreis you listed as the G8 aren't exactly comunists (thank the Lord above), hence the welth isn't spready very evenly (I'm not even so sure that everything was so "equal" in strictly comunist countries). So alot of these people aren't what you'd really consider rich.
Though, thank you for telling me about the G8. That was a term I'd never herd before.