Enslave Hade or Gathor... now that's a thought. Shame it's never going to happen.
The game as it is now leaves an impression that the developer is not interested in the slightest in making any named male NPC's recruitable (especially if they can't be gender-flipped like Ivran). Pretty standard for these kind of games, given the target audience. So female NPC's are prioritized at all times, at least story-wise (that's why I never made any suggestions of my own - there seems to be no point to it). Of course, there could me many other ways of resolving the final stage of the main quest, logically, but logic takes second place to giving the player an opportunity to get yet another"special" female.