One of my archaeology professors from university once told me that no one he has ever met in his field has ever been an "Indiana Jones" type treasure seeker.
Just as a point in fact, many believe Indiana Jones was based, in part, on the real life stories of a number of archaeologists and adventurers, such as:
Beloit College professor and paleontologist Roy Chapman Andrews
Italian archaeologist and circus strongman Giovanni Battista Belzoni
Yale University professor, historian, and explorer Hiram Bingham III, who rediscovered and excavated the lost city of Machu Picchu, and chronicled his find in the bestselling book The Lost City of the Incas in 1948.
University of Chicago archaeologist Robert Braidwood
University of Chicago archaeologist James Henry Breasted
The British archaeologist Percy Fawcett, who spent much of his life exploring the jungles of northern Brazil, and who was last seen in 1925 returning to the Amazon Basin to look for the Lost City Of Z. A fictionalized version of Fawcett appears to Jones in the book Indiana Jones And The Seven Veils.
British archaeologist and soldier T. E. Lawrence.
The Northwestern University anthropologist, professor and adventurer William Montgomery McGovern
Frederick Albert Mitchell-Hedges, who along with his daughter, is one of the first Westerners to find one of the legendary Crystal Skulls (hoax or not)
German archaeologist Otto Rahn
So, there are "Indy"-esque types out there...but they're about as rare as can be.