Justifying recruiting characters as evil TAV

Hi folks,

After two playthroughs I decided to go for a full evil TAV RP to experience the responses from party members and character evolution for both the evil and non evil leaning party members. I have one main issue from an RP perspective though when it comes to recruiting party members ( if only for them to leave later like Larlach and Wyll when the inevitable happens). The main thing is that, to me there are no evilish, sarcastic or similar dialogue choices when it comes to recruiting most characters. Having my evil tav say something like "let's travel together as it's safer" or even rescuing gale/karlach doesn't seem to lean into that evil side at all. So, my question to you guys who have done an evil playthrough and were into the RP side of things is how did you justify those dialogue choices to get people into the party?