There is no “wanting” anymore, he is an established gray character. He obviously is more kind and compassIonate, more generous, more patient, more reasonable than any other powerful pirate.
He is still cunning, ruthless, lives a life of crime, and definitely kills people.
Regardless of his ultimate motive or his ultimate purpose in the plot, especially if he turns out to betray Luffy etc, it will just establish him as gray because you can point to whatever he has done from the opposite perspective and say “oh no look he’s a good/bad guy because he did this”.