As far as Miles is concerned they're probably already affecting things, so why not save Vorkosigan Vashnoi? But - that's neither here nor there, for now. They have more pressing issues.

"All right, all right," he murmurs, conceding the battle if not the war. "We'd have to survive that long, anyway. And I don't think Gran'da will let either of us live if he finds out how much we've been lying to him."