Akira has too much of a weakness against people showing kind traits, to the point he forgives an obvious scumbag they happen to be with. He used to hate such exploiters with a passion and doesn't compromise (correct me if I'm wrong, long time since I've seen the earlier chapters).
This should set him back on track and follow Alpha's advice more, and hopefully make him more ruthless. He needs as much to survive in such a world.
Not to say best girl getting kidnapped is a good thing. Hope the asshole gets the slowest, most painful death.