Injecting 12.5kk into the economy of the game (using sir's example of the daimyo hat and scarf) for just the creation of one item would utterly ruin the market of this game and lead to something called hyperinflation, I'm sure you've heard of it. It is a major dilemma when you consider money is meant to be earned through the game at a 10tc per game base rate. This tc would become utterly irrelevant because everything would cost 100k (am exaggeration however the point is clear).

Controlled inflation however can be very good for an economy. If you're really that interested read here.