Are economic inequality, wealth inequality, income inequality, and class inequality interchangeable?

Chomsky claims from the outset of the book that "inequality has a corrosive, harmful effect on social relations, on consciousness, on human life, and so on, which has all kinds of negative effects" (5). Keeping this domino-effect relationship in mind, are the sources and effects of inequality interchangeable?

Do elites suffer from an overall lack of concern for the next generation of humankind?

Chomsky argues that the state of economic and political development is leading to "environmental destruction," yet elites, the business class, and even the current presidential administration continue to exacerbate society's dependence on fossil fuels and make the problem worse (144). While this could be seen as blatant disregard for the health and safety of the next generation, it can also be argued that the wealthy few rest assured in the system they've helped create, which...