"Ahem, I'll talk to Watson later."
The astrologer was a little embarrassed by Nightingale's skepticism. Watson, in his opinion, was a bright young man. He expected Watson would take advantage of the winter to raise the price of supplies and earn a fortune, but he did not anticipate Watson to help the refugees for free.
It was good to be kind in that world, but one had to act within one's abilities. More than a million people lived along the border, including those who made it through the winter; the remaining refugees were at least hundreds of thousands.
Watson had no with that because the castle only housed tens of thousands of immigrants. The situation would be different if that number were multiplied by ten.