Headhunter Marketplace

One day a group of explorers were walking through the jungle and stumbled upon a head hunter marketplace. They noticed one merchant was selling brains. There was three baskets of brains. The first basket said “Physicist Brains $0.50 a pound”
the second said “Philosopher Brains $2.00 a pound” and the final batch read “Lawyer Brains $100.00 a pound”
One of the explorers cautiously walked up to the merchant and asked why the physicist brain were so cheap and the lawyer brains were so expensive. The explorer reasoned with the merchant that physicists are smart; so shouldn’t their brains be more expensive becasue they’ve been used more and contain more brainy goodness? The merchant looked at him and laughed. He replied “Do you how many lawyers we have to kill to get 1 pound of brains?”