Stop for a second and think why would abstract "richer group" ask for it and how would abstract "poorer group" prevent this from happening?
E.g. if the "richer group" got rich not via favors from monopoly of violence, but from efficiently servicing "poorer group", why would they risk massive boycotts and end of well-running business for a short-term benefit? Imagine if Amazon suddenly decides to print books using blood of cute little kittens because it's slightly more profitable. Would they think twice whether customers would be eager to buy those books?
Or you'd prefer a mythically benevolent all-powerful organization with guns, nukes and tons of paperwork that will create an appearance of "protection of piece and order" which you will never be able to control or affect?
This has nothing to do with preferences. The world is full of rich groups and governments that got there thorough favors and exercise of power if not violence.