Consider that as executive and regulatory function, government is analogous to the central nervous system, while money and banking mirror the blood and circulation system of a society.
The problem of public government and private banking is this gives banking the upper hand, since they are not subject to much oversight and don't have to work around election cycles.
Michael Hudson wrote a good book some years ago, called; Forgive Them Their Debts. About how this tension between the political need to sustain society as a functioning entity, versus the inherent feedback loop of wealth being used to garner more wealth and drain society, led to the creation of debt jubilees as a circuit breaker.
So Great Britain rode this wave of wealth accumulation from much of the globe and frankly still does, through the global looters in the City of London.
The problem is that as a virtual empire and not a physical one, they really don't need the foot soldiers anymore, so the actual country of England has just become one more place to loot.
Remember the Windsors were just some minor German royals the bankers and merchants brought in, when the seat was empty. It is all just show and has been for a long time. Now the reality check is in the mail.
The anarchies of desire, versus the tyrannies of judgement.