Anyone who has been in contact with the enemy could have been turned. Yes, even if that contact was only the brief intersection of their sword with the villain's body. You never know what kind of weird protective spells they might have that can affect the minds of people who try to harm them.
Have we given you any ideas for your own game?
We should have.
Luke: So... What do you think of her, Han?
Han: She's hot. I'm putting the moves on her. Have you noticed?
Luke: Er... That is so not what I meant. I don't trust her.
Luke: Back in the Peace Moon she tried to come on to me. I think she's a spy.
Han: She came on to you?
Luke: It's suspicious, don't you think?
Han: Well, yes. But don't be ridiculous. She's practically the leader of the Rebels.
Luke: And how long was she in the enemy camp?
Han: Hmmm. So you're saying it's more important than ever that I seduce her.
Luke: Not exactly my angle...
Han: That's why I'll do it for ya, kid!