First, he is still zombie-like, not angel like. Looking at him you barely can say his allingment is positive. Dead-skinned, tattoed and scared and actually people treated him according to his outfit.
Of course. People, despite what they pretend, take things at face value first, for it is appearance that they first encounter.
People, who decided to join him, all had their own torments as TNO has his. They hoped, that walking his path, they can somehow solve their own troubles.
IMO, most people use and manipulate each other to some extent. If you love someone, you want to be with him/her not only for his/her happiness, but also yours. It is a form of selfishness. Another thing is that, if they didn't at least care a little for TNO, they wouldn't have joined him in the case of Morte, FFG, and Annah.
He just didn't care much for them and used them to achieve his goals. Even that girl Dejonarra, she loved him. TNO let her die just to give him possibility to escape Fortress of Regrets.
Ah, but that's the Practical Incarnation, is it not?
And last thing. Do you think art of persuation belongs to positive allingment?
Hardly. I said, irrespective of alignment. Charisma can come in any form, with anyone. It is just a trait, nothing more.