Yeah, considering what he was doing, running a cosmetics store, it makes perfect sense, like he even said in the episode. When you visit the cosmetics section of a department store, the ladies there are never shabby. I don't mind those girls finding relevance this way. If he had employed and looked after them forcefully, out of pity, it would have been less fitting.
What I'm unsure of is making Maha and Tarte look like psychos by giggling and competing for Lugh's attention while they are torturing a chained man to death. Perhaps he does need to break them, who knows. If the hero is still a hero when he needs to kill him, it might be difficult for assistants that don't follow his every word without a question. Although I'm not sure he needs to go to such lengths. If he just told the girls the hero isn't what he seems to be, I'm sure they would believe him.
The last scene reinforces my opinion that despite all of the dude's talk about the girls being pawns and every other kind act he performs being nothing but another cog in his great assassination machinery, in the end it's all talk and this is a genuine harem series.