Most of us who work in technology, secretly wish that one day, something we've created will change the world in a positive way, or that we will be able to look back at some point and realize that we've contributed somehow to make this world a better place. For many of us, this is the driving force that put us in this field in the first place, even when we rarely admit it to each other, let alone to anyone else.
Some of us get to achieve it, one way or another. In an anonymous way, most likely in the form of one single link in a chain of events that, individually, might seem insignificant, but altogether, represent the continuous and dynamic steering of human progress. Our names will not be remembered, neither will our individual contributions, but they will be there for others to build upon, one link at the time, one step after another.
And then there are those who manage to envision that things are possible in ways that would be unthinkable for the rest of us, and not only that, strive to make them happen. They don't work alone and rely on others, that's certain, yet it's their unique inspiration, persistence, and the exceptional love for what they do what motivates others to flock along them and help them change the world. Steve Jobs was probably one of the most remarkable examples in the latest times of this rare but wonderful people, and we've been lucky to be challenged with his contributions to technology. I am not sure whether being in this industry would be so challenging and exciting as it is, if he hadn't been around.