Well, those of them who have studied estate management might have a bit of an idea. You don't seriously think Peregrine manages it personally, do you?
After World War II, the Labour government seriously considered nationalising some of Britain’s great houses - Chatsworth, Blenheim etc. not because they particularly wanted them but because they enjoyed the prospect of booting out the owners and confiscating their property.
However it was explained to them that these places are extremely time consuming and expensive to run and quite honestly it would save a lot of time and trouble to just let the owners get on with it - annoying as it may be.