Eventually the Middle Class begins to demand Political Power Commensurate with its growing economic power. Leading to Regime Instability and conflict. In the process of colonialism Europe set up colonial regimes that served the economic, social and political interests of the mother country while ignoring the economic and political development of the colonial country. There were two types of European colonialism formal and informal. Formal Empire or colonialism was when the European mother country would send its own administrators to run the country.
Informal empire is when native elite rule in the interests of the European country.
Often European countries would rely on a King, Emperor, Shah, Sultan or other elite to do their bidding for them. The elite leaders would be economically linked to the west. The colonial people would think they were being ruled by their own people, when in fact they were being ruled by the native elite now tied to the prerogatives of the European country. Regardless of the type of colonial rule the usual result as no political modernization of any kind. In this context these colonial regimes became bastions for raw materials, cheap labor and markets for the Europeans and because of this never went through a commercial revolution of economic modernization that would lead to the creation of a middle class.