No idea. I just thought that I have yet to achieve anything important, so as far as the world is concerned, I'm just as pathetic as random lifeforms cluttering the planet. Strangers in the city, old people clinging on the last flames of their life, you, me, all those people not deserving the label 'great' yet. The pathetic, average bunch.
Anyway, in the end, even these great people you admire is just a tiny speck of carbon and other things in this universe. It's just a matter of perspective, see?