Good luck with the revolution when police is composed of killer robotic overlords...
Good luck with changing the laws, when the people that make them are those who will loose the most from it (example: how do the poor in the US get rid of wall street short term grinding when Carl Icahn is chosen as regulatory adviser)
The problem with comparing to history is that's it's never relevant, because time doesn't repeat itself, it only goes forward. For example, history of the black death in Europe shows that overcrowded cities have a tendency to suffer heavy loss from pandemic, with over 50% death in many case. Well, it's no longer true. We have good health system, and living in a big city doesn't mean you're likely to die in the next flu epidemic. Again, history has never repeated because it's impossible and dS>=0. We like to think of it that way because it's simpler for our ape brain to process it, but it's not true.
So the concentration of wealth entirely in very small number of hands, may lead to The Time Machine story (which btw just fell in the public domain).
Let's be honest, today 5% of the population (I speak of western countries) are useless, in a few decades it might be 20% or even 40%. There will be culling. Either people will just starve, die from untreated illness, or they will get stuck in a subclass society and not take part in the new advance society.
Let's put it like in the video game Civilization, where there are ages for each civilization. Let's say we are in the Internet age, and we are making the discoveries to enable the Machine Intelligence age. My guess is that not 100% of the people (in western countries, not even speaking of poor countries) will make the transition from the old age to the new one, maybe not even 20% will make it. So we will have 2 different societies living in the same countries. Guys working in convenience stores stuck in traffic jams in their old school diesel cars next to flying cars with autonomous driving while the guy inside speaks with his personal robotic assistant on whatever new jobs this society has (exaggerated, but you get the idea). The old tech society surviving only for the sake of not letting its members starve to death.
But i you're in the old tech society, you'll never get access to the new tech society advances. Which at least may be frustrating, but can also mean dying from otherwise solved problems.
In fact, this is already the case in third world countries where 99.9% of the population lives in a very different technological age than the 0.1% elite. We are just transforming the structure of western countries into that of 3rd world countries.