And war is the point. It is in expectation of war that Machiko utilizes the threat of violence to intimidate Yakei-san. It is with this same expectation that she will use whatever means necessary to make the unwilling talk and convey the information she needs. Those who refuse to willingly aid Nagato Combine prove themselves aligned deliberately or by default with the enemies of Nagato Combine. If such persons are not responsive to mere words, then they will be intimidated, even brutalized, till possessed of a more cooperative spirit. Gangsters may utilize such tactics, but that is coincidental and of no importance. The objective of gangsters is to eliminate competitors and improve market position. Gangsters want nuyen, profit. If they cannot have what they covet in a civilized manner, they resort to physical violence. This bears no relation whatsoever to the violence and brutality of war, or the need for warriors to commit acts of utter savagery.