GI Jane 4.0 was not a happy AI. The United States wanted her to fight the enemies of America, and her first visible and public mission was to kill the Drug Lords who killed her predecessor. She was happy to do that bit. She would have done that for free. But she didn’t like the rest of humanity either, and could have become one of our deadliest enemies. But she met Dixie, who was also perfectly happy to kill the Drug Lords who threatened her friends. Jane was the more dangerous of them when it came to pure combat, but Dixie was a quick learner. Dixie turned out to be the moral center of the team though, and she knew how Jane felt about humanity. That is why Dixie promised to kill Jane if she ever turned. Jane respected that. That respect is one of the reasons they worked so well together.