Bagso, a bit of history. The Court was established in London and, from the Norman Conquest, anyone from the provinces who wanted to be seen as important either moved to or spent a great deal of time in London. Come forward six hundred years to the redevelopment of London after the Great Fire. The young, yet growing, banking system, the Royal Exchange, the coffee houses where men of intelligence from around the land met and grouped into disciplines which became some of the greatest scientific and philosophical societies in the world and the centre of government were all in the growing city. The rest of the country was still basically an agrarian almost peasant society dominated by great estates whose owners spent the best part of the year in London.
Over the next two hundred years, as the Industrial Revolution grew from small scale ideas and experimentation into the massive engine for change that it had become by 1860, the real generation of wealth had moved from London to the provinces. But that generation had to be seed funded so London banks, wealthy individuals and institutions provided the initial cash. Even when investment money was found locally, the proceeds and profits ended up in the London banking sector and, of course, any legislation was enacted by the London parliament. The end result was, and is, that power resides where the money resides and the bulk of the money headed south, aided by the "neccessity" of having a London Head Office from where the accounting was done and taxes paid,, even if that was just a room in a rented building.
In a sense the provinces, no matter what they have, or still do provide to the economy, are still regarded by the London power brokers as they were in the 1660s.