The Rich Rebellion

"The officers and committee members of the Sons of Liberty were drawn almost entirely from the middle and upper class of colonial society." -Pauline Maier

Why? Is it simple because the people on the upper side of society had the means to organize a revolution? They had more to lose, though. Usually it's the poor or oppressed who rebel. I find it strange that those wo had a better, more comfortable life wanted to take the risk to give it up. Perhaps that's what made them more convincing. Or maybe it's simply because they were more arrogant and thought that they could do better. Either way, it's a different circumstance than more rebellions.