Yeah. It did turn out to be a major drug operation we broke up down there, which they still haven't even found out existed. Cops aren't likely to get involved in this.
Giving her money will absolutely help her get away. And if she gets away, I think the pimp will look at people she knew to see if she's hiding with them, and the clinic is probably the first place he's going to look.
Secondly, it's concievable that even if we ambush him at the apartment that we still won't kill him. Maybe she'll ask us if we can pay off the pimp to let her leave. Maybe she can fight off the pimp without our assistance, and we just watch.
Thirdly, even if we kill the pimp it doesn't necessarily mean we'll go to being shot on sight. We killed a robot earlier, which might not be a person. If it's just the pimp, they might blame the missing pimp on Iseng'ila, not us. Who is going to run after the apartment ambush. Pimp will probably have some money on him, and then we can give her some more if necessary, to let her run. No sense in her sticking around in her apartment after doing that.
Both eating the body and dropping it out the apartment window are possible disposal methods, despite you calling them silly joke suggestions.. we could do either of those. We could also try and get the body to the maintenance tunnels or that garbage pit with the monster. Or maybe these apartments have disposal chutes that go to there directly.
We don't need to fool the cops. We just need to fool a few crooks. If we can clean up the apartment so it looks like he didn't die there, his buddies will have a very hard time figuring out what exactly happened. And, no offense, I don't think his higher ups will know eveywhere their sex slave lived or worked with before being their slave. The pimp probably did. His bosses.. probably not. That gives us a good chance at never seeing another crook after the pimp, even if the crooks come looking for the missing pimp, as they won't know where to go.
That is why I want her to go far away, it is better for everyone and has the lowest risk factor for helping.
If we kill the pimp, I was assuming Iseng'ila would go away after doing so. The pimp will probably have some money which will make it less costly for us.
If we just pay Iseng'ila money, she'll likely get away. But I'd expect the pimp might look at the clinic next, and I'd really, really rather not risk the lives of Eiwhyl's patients by fighting here or having crooks threaten them. It's less certain than the pimp coming to her apartment, but it seems extremely likely if Iseng'ila's not at her apartment, and far, far riskier to us when it happens.