The French Revolution of 1789 is one example, for which there's some evidence that it was the less successful members of the Bourgeoisie (middle class) that led

The French Revolution of 1789 is one example, for which there's some evidence that it was the less successful members of the Bourgeoisie (middle class) that led the initial outburst of violence. My understanding is that they weren't particularly starving or oppressed, at least in historical terms, but more so dissatisfied at how society was structured relative to their expectations of how it could or should be structured.