Conflict between the rich and the rest of society is as old as civilization and forms the core of most politics. Perhaps 80% of all politics is ultimately concerned with: How the wealth of nations is distributed, who gets it, and in what way do they get it.
As a general rule, whenever there is a huge disparity between the richest and poorest members of a society, an oligarchy or a dictatorship sooner or later arises, the freedoms and liberties of the common people are oppressed, and the middle class shrinks or is destroyed.
Thomas Piketty has analyzed the history of wealth concentration and distribution in developed countries over the past 250 years and notes that there are economic reasons wealth inequality has been increasing and will continue to increase in the future unless policy measures are implemented to prevent it.
The actual means whereby the wealth of a society is distributed, and the cold, hard realities that often result from its distribution, are routinely masked by misinformation, propaganda, and lies. This makes it difficult to generate the political will necessary to prevent a society from devolving into an oligarchy or a dictatorship, or to bring reforms to an existing oligarchy or dictatorship.