Even it were the case that "makes the whole nation richer because it makes some individuals poorer" still how do you measure "richer". For example is it better if the GDP capita is much higher at the expense of morality, religion, culture, local communities and plain happiness or freedom?
Are the riches the highest value? If not what values are higher? Can you list a few?
BTW, how is the "whole nation richer" when the balance sheet just keeps hemmoraging red ink? Consumer debt is something like near 90% of GDP. "Rich" isn't a Nintendo or Playstation in every home, it's lasting stuff like paid off homes and money in the bank (that doesn't depreciate like water evaporating either).