I see that you never have been in NYC. On Wall street, stock brokers would laugh at you and your ignorance.
Could you elaborate a bit?
I wouldn't personally call learning any language a waste of time. The very fact that there are 600,000 living in England shows that there is a demand for Polish - english translators. Also, my polish friend told me that there are good jobs available in Poland for english people who also speak polish.
My reasons for learning polish are not for work or material gain, but translation is a very viable option :)