I have asked foreign clients the following question many, many times: in case they come into conflict, would you prefer me to choose the path which preserves your ego or your business interests?
Most get the hint.
(A close variation of the line works on Japanese people, too.)
In China I could be as frank as I needed to be with the business owners, they get it. But everyone beneath them had to be dealt with via signals and customs.
Same in the middle-east. It's an elaborate ceremony, communicating via intermediaries and exchanging pleasantries at dinners and formal gatherings, but as soon as you climb the ego ladder and reach the highest stakeholder you can drop ritual and say "dude, we're fucked". Sometimes you reach a very beneficial and logical agreement with The Man, then thinkup ways to rationalize it and explain it to the role-playing minions below him. Tradition and bureaucracy are often abused by selfish and incompetent people to keep status. (Once you reach the C-level contact, I recommend that you don't cut off his aides and minions; treat them as you have treated them before, when you needed access to him, that way they will not consider you a threat. As an exercise, go back to them for a few more "favors" and let them shake you up for bottles of scotch, it makes them feel in control, and when the boss has future plans with you, they "know" they will be treated.)
Most get the hint.
(A close variation of the line works on Japanese people, too.)