This scene went differently with my group, but we ended up with a similar opinion.
So here we are, a group of westerners driving around Lagos with a white Land Rover (we considered that since we weren't going to like locals anyway, looking like a team of CIA or corporate agents, if not discreet, was the safest way to go). The traffic stops, and we see the slaves or whatever taking the children and shooting the one trying to escape. Jane says something like "we must do something" and open her door. The runner sat next to her tries to grab her arm, only slowing her down for a second. So my character bursts out of the passenger front seat, standing between her and the slavers, and lectures her about life in Africa, security procedures, letting us doing what we're paid for, and so on.
The slavers notice and two comes our way. The first orders me "to get my bitch back in the car". Jane looks at him, his head explodes. The next moment, I have half a dozen of AK bullets sprayed in the back of my vest.
No matter if she dealt with the rest of the slavers almost alone. From that point, the entire team considered her as liability, that is going to get us killed at some point.