There have been numerous revolutions with positive benefits to the world at large as well as to the society/culture in which they took place. I would chance to say that the majority were net-positive. If you find yourself scared of revolution, you should maybe take an introspective moment and ponder why the poor and downtrodden of the world (or just in your own country) would consider you their enemy.
Unless you are planning to massively alter the political (IE not have a democracy anymore) or economic system (IE not have capitalism anymore), a revolution does more harm than good, because you are only getting the short-term byproducts which are predominately bad. If the political and economic system remains largely the same, then a revolution is just a period of time where people are committing violence or protesting instead of making things.
If you already exist in a system that is pliable, like a democracy, revolution really wouldn't bring you any of the benefits the French revolution did in the centuries that followed. You'd really only get the downsides.
Let's not forget the context of the conversation here an talk about completely different circumstances.