Maurice's last audio log has him in despair over his wife being put in the human trafficking auction, prompting Aiden to contemplate that he was Not So Different .This is the same auction you shut down in the second act.
Despite his questionable morality, Aiden still goes great lengths to protect his family. And loves them no matter what.
Proof that being a good guy has benefits. When Aiden has the "Vigilante" blue side of his meter filled up the people of Chicago turn him into a celebrity and home-town hero. In one news report it is said the citizens are actively refusing to tell the police anything that might lead to Aiden's arrest when questioned simply on his reputation alone. They also whip out their phones to take pictures and video of him whenever they recognize him on the street. This troper was chasing a perpetrator of a crime in front of a dozen witnesses and when I finally tackled him on the ground and held him at gunpoint a civilian spoke up: "I don't know what this is about but you help people right? Just get out of here before we must call the cops okay?". That just felt awesome and made it seem like the citizens truly appreciate what you do.
T-Bone's concern for Aiden's family and assurance that what Defalt has done is now personal and that he himself will go get the backup data back while Aiden tries to stall Damien.