WEll, if we (or just Ruski) are going to be writing it, chances are he'll not be followinging Bushido anyway, but merely a western interpretation of it. Which is fine, as he too, presumably, is a westerner with a westerner's understanding of Bushido, and of concepts like Honour.
It would mean that someone whom he considers a "lord" could forbid him from talking direct action, but is that what we want?
Bushido certaily is a philosophy worthy of a second glance (even if it is a bit ... unwieldy these days), but do we need it? or even want it?