Tony Stark was arrogant son of wealthy weapon manufacturer Howard Stark who cared only about himself. This changed when he had a change of heart after he was kidnapped by terrorists and gravely injured. Stark was pressured to create a weapon of mass destruction. Instead, he created a suit of power armour to escape. Tony uses his wast resources and intellect to make the world a better place as Invincible Iron Man. His super hero identity led him to become the founding member of the Avengers.