Social gaps of power and wealth in a country tend to bring mixed results: more wealth creation for a small section of a country´s population on the one hand, and less opportunities for wealth creation for the rest, on the other hand.

While global wealth distribution has been reduced in recent years, wealth disparities inside countries have widened. In the US, for example, “over the past quarter of a century, only America’s most affluent families have added to their net worth”. source: http://inequality.org/wealth-inequality/