In the face of a one-sided parliamentary situation, Prime Minister Cecil was helpless. Without the parliament's approval for funding, there was no way to increase the military budget. The only supporters of Cecil, besides his close aides and political allies, were primarily the interest groups from Cape Town.
However, the largest interest group in Cape Town, which included the diamond merchants from places like Kimberley, although powerful, couldn't change the situation. After all, the diamond business wasn't very important to the British Empire, given its status as a World Overlord with numerous giants across various industries.
Moreover, the military expenditure in South Africa alone now exceeded all the economic gains the UK could reap from Cape Town, making it entirely unprofitable for the British government.
The UK was also one of the world's most calculating nations, and it hadn't engaged in such "unprofitable" ventures with no sign of future profits for years.
