Famous People Who Were in the Completely Wrong Career at Age 30

From http://ycombinator.com/newsguidelines.html

If the original title begins with a number or number + gratuitous adjective, we'd appreciate it if you'd crop it. E.g. translate "10 Ways To Do X" to "How To Do X," and "14 Amazing Ys" to "Ys." Exception: when the number is meaningful, e.g. "The 5 Platonic Solids."

Although this list includes Michael Jordan and Jesus, for some reason, I am not profoundly inspired. I feel my time has been wasted.