I think the polling has a much higher value in NTR games, where the dev is essentially asking his audience what characters should be paired together in the NTR scenario - like asking you, the player, who your gf/wife should cheat with. In your case, it should also give you the power to steer them away from just tossing Ugly Bastards or old dudes at you all the time. Since there are several women in Lustful Voyage, the dev is asking us what combination we want, and we respond in kind. Even in the recent polls, Scallywag responded to "backlash" about the winner of the latest polls, where a fan-favorite lady won the poll... only she was paired up with probably the least desired male option - and Scally listened to his community and gave us a chance to save her from that horrendous monster called Bryce and let us choose another male option for her.
Because that's the kind of dev
Scallywag Games is, and we love him for it!