Full-replacement cyborgs can't be acoholics, and the Major has been repeating that to herself for so many years that she's practically deleted the thought of a psychological half to the problem from her mind. She kills whomever she's told to, for a living; if that doesn't entitle one to drink, then what does?

"And any of this is?"

Knowing he's rich and seeing the facade of it pulled out from under the cowl doesn't make it any less jarring to reconcile the genteel with the brutal. Motoko knows which she prefers.