Thank you for that.
The bottom line is that we should be worried about inequalities in our society, all sorts of inequalities, because ultimately they shape opportunities. Different types of inequalities shape opportunity in a different way.
The Great Gatsby curve is a relationship across countries in which the most unequal countries are the most class-bound countries, where it's hardest to get ahead in life and privilege is protected.
Canada, for example, is much more socially mobile than the United States, in part because of our health care system, in part because of the high quality of our education system and in part because of an open and efficient labour market that rewards talents, but it doesn't mean we don't have challenges. The Great Gatsby curve stresses the importance of fighting poverty and inequality to allow the next generation to prosper.