1. The difference between collecting bus tickets, working on mathematics, and figuring the crystallization patterns of snowflakes is virtually nothing. To the people obsessed with it, it is all-important; to outsiders, all three look indistinguishably pointless. Only in retrospect can anyone say whether the activity led to something society considers important. The truly obsessed don't care.
2. Genius is overrated. We like stories of great individuals changing the world with their genius because we like stories and we dislike chance. But for nearly every invention and idea, history shows that multiple people were working on it at the same time. Civilization's progress is more a sequence of ideas whose time had come, but we prefer stories of great unique geniuses.