Is being rich your good luck?

Because of the grinding poverty here and because of my relative wealth, I've been thinking about this. In a bible study the other day it came up how blessed we are compared to many of our Haitian neighbors... And it made me wonder, is this really just how the world works or does God actually choose who can eat everyday and who cannot? I think it's probably just luck. I put "why god makes some people poor and some rich" (maybe the wrong question) into google and came up with an interesting thread that doesn't have any good answers.