Where the first Adam sought his own interests, the second Adam remained obedient to the point of death.
According to the story, an immensely powerful, wise and ancient creature fooled eve into eating some fruit in order to have understanding. To know good from bad - Which presupposes they didn't know bad before they ate the fruit. If they didn't know bad how can they do bad? And certainly anything as complex as doing something 'in their own interests'? It's somewhat like a toddler being tricked by an adult to do something their parent said not to and when the parent returns they punish the toddler.