Dio is consistently manipulative and violently domineering, and has repeatedly shown a lack of conscience and empathy. Naturally, Dio is an incredibly-selfish person, only looking over his own interest and overlooking those of others at best, trampling them on the ground at worst. When interacting with someone, Dio will constantly try to manipulate them and sway them into his side, using a veneer of gentleness and his natural charm to make people admire and like him.