More, he had to be extremely careful. Everything at the interface of atevi responsibility and human emotions was difficult and subject to error. As long as he'd lived among atevi, he could guess one's man'chi toward a lord, and he knew the specific man'chi of Tano and Algini and others toward Tabini, but he knew very little of their family ties or how man'chi to a lord fit into man'chi toward a mother or a father. He'd heard Tano speak of his own father, and of a desire to have the man's good opinion, but he also knew that Tano had defied his father's wishes to pursue a Guild career. He'd had Tano recommend relatives for posts as "reliable persons," a reliability one could attribute to man'chi, and the fact that it wasn't biologically likely for treason to operate where man'chi existed.
He knew that Damiri had defied her clan to associate herself romantically and politically (or should that be, politically and romantically) with Tabini, who was close to an ancestral enemy of her clan, a close neighbor in the Padi valley holdings, and certainly persona non grata with uncle Tatiseigi, the head of the Atageini clan. Antipathy on the part of a clan head (toward whom Damiri held man'chi) certainly hadn't daunted Damiri--but then, few things did.
The one wisdom about atevi family relations that two centuries of paidhiin had gathered was that the bonds of affection that held a human family together were not only not present, they weren't biologically possible.
Different familial relationships and different necessities.