Two lists

People who have made a difference in the world while not billing hourly:

• Albert Einstein
• Jonas Salk
• Galileo Galilei
• Charles Darwin
• Henry Ford
• Steve Jobs
• Bill Gates
• James Madison
• Thomas Jefferson
• George Washington
• Abraham Lincoln
• Franklin Roosevelt
• Winston Churchill
• Lech Walesa
• John Locke
• Adam Smith
• Karl Marx
• Martin Luther King, Jr.
• Florence Nightingale
• Harriet Tubman
• Susan B. Anthony
• Thomas Edison
• Alexander Graham Bell
• Leonardo da Vinci
• George Lucas
• Alfred Hitchcock
• Steven Spielberg
• William Shakespeare
• Leo Tolstoy
• Homer (the original one; not Simpson)
• Walt Disney
• Jane Austen
• Pablo Picasso
• Claude Monet
• Jean Renoir
• Ludwig van Beethoven
• Wolfgang Mozart
• Tim Berners-Lee
• Elvis Presley
• John Lennon and Paul McCartney
• Michael Jackson
• Mother Teresa
• Moses
• Jesus
• Mohammed
• Lao-Tzu

People who have made a difference in the world while billing hourly:

*sounds of crickets chirping*

Note: The first list is arbitrary and in no particular order. Of course I left off many people who made a difference in the world while not billing hourly. Have I forgotten anyone on the second list? Add your thoughts in the comments below.