What is revolution? To what extent do ideas influence behavior?

What is revolution?
Revolution is a clean break from the past which allows society to start fresh again. A revolution starts from a downward spiral in the economy, drought, famine, defeat in a war, injustice, etc.

To what extent do ideas influence behavior?
Based on the ideas someone has, it could influence their behavior. If someone wants to start a revolution they will follow their ideas of revolution and act out their behavior based on their ideas.  In the Industrial Revolution people became more materialistic because they had better machines to make more materials and they had the money for it.