I came across this ted talk explaining how your language can affect your ability to save money. It was featuring Keith Chen who is an economist that discovered a fascinating pattern between languages without a concept for the future -- "It rain tomorrow," instead of "It will rain tomorrow" -- correlate strongly with high savings rates. I decided to email him asking if he thinks this research would also work for certain dialects being able to save/make more money then others.
Still no response ☹. If i had to make an educated guess... I do believe that this research would work also work for certain dialects. If there is a relationship between certain languages saving more/less money than others, I think it would also break down all the way to certain dialects also saving more/less than others.