Interesting... well, I'll give it a shot, Mr. Robot.
I'm going to be an officer in the army of the United States, a first-world nation that genuinely tries to use its might for the betterment of less fortunate peoples and nations. I will be the implement that my government uses to provide aid and defense for those who cannot get it for themselves.
Beyond that, I intend to use the rest of my life accomplishing and experriencing as much as possible, making as much of a difference as I can. These are, in my mind, the purpose of life: for the world to miss you when you die.
However, even without these, I am a son, brother, cousin to several people. I'd like to think i was pretty good at that; what makes you think my replacement would be any better?
I could continue, but I think I'm safe by now.