If you mean "by increasing economic activity, since poor people have lower rates of saving, thus creating more wealth,"
This appears to be a complete non sequitur.
What I mean is the typical capitalist statement "voluntary transactions create wealth." Since both sides are happier than they were (well, most of the time, this is reality after all), they've both gained wealth. This gets called "creating" wealth, even though that's a bit silly :) So if you want to make people happier, one way is to look for high-gain voluntary transactions, and make them happen more often. Thus my claim that increasing economic activity will (ceteris paribus) create wealth.
This obviously isn't always applicable - sometimes investing the money (what would otherwise happen) is just fine, wealth-creation-wise. But if poor people, and the economies that poor people are part of, have high-gain voluntary transactions available to them that they aren't using yet because of lack of money in the system, there's opportunity.
In line with the results of the poll here, a thread for discussing politics. Incidentally, folks, I think downvoting the option you disagree with in a poll is generally considered poor form.
1.) Top-level comments should introduce arguments; responses should be responses to those arguments.
2.) Upvote and downvote based on whether or not you find an argument convincing in the context in which it was raised. This means if it's a good argument against the argument it is responding to, not whether or not there's a good/obvious counterargument to it; if you have a good counterargument, raise it. If it's a convincing argument, and the counterargument is also convincing, upvote both. If both arguments are unconvincing, downvote both.
3.) A single argument per comment would be ideal; as MixedNuts points out here, it's otherwise hard to distinguish between one good and one bad argument, which makes the upvoting/downvoting difficult to evaluate.
4.) In general try to avoid color politics; try to discuss political issues, rather than political parties, wherever possible.
If anybody thinks the rules should be dropped here, now that we're no longer conducting a test - I already dropped the upvoting/downvoting limits I tried, unsuccessfully, to put in - let me know. The first rule is the only one I think is strictly necessary.
Debiasing attempt: If you haven't yet read Politics is the Mindkiller, you should.