I don't know if I like assuming that obedience is a genetically heritable trait. I've heard racists use this assumption to argue that racially Chinese people are more likely to be sneaky servile backstabbers because that's what their genetics are selected for due to their political past.

Controversial statement incoming: I also don't want to preemptively rule out the possibility of obedience, or anything else, being genetically heritable - even if it could lead to these uncomfortable conclusions. I think scientific studies should be done about such things to answer the questions of whether these personality traits are heritable, come what may of that knowledge. But to my relief, from the studies I've seen, personality traits heritability is on very shaky ground in most cases.