hmmmm, interesting. here's what i've noticed with workers who come from different monetary cultures. the poor employees tend to work their butts off until they saved up a few thousand then they totally burn out, slack off, blow their money on "spinning rims" or drugs and quit. they end up broke within 2 months of quitting. the non-poor workers tend to work at a slower pace, but don't burn out nearly as quickly and save up. they also don't blow their cash on "bling" things.
my buddy, who strictly hires mexicans, say that alot of them live in the USA on temp visas for limited time. they save up every penny and go back to Mexico and live freely for a few years then return to the USA again and repeat the process.