What is the theme in The Climb: Tragic Ambitions on Everest by Anatoli Boukreev?

The Climb" is largely a response to the controversy surrounding the tragic climb of Everest in the spring of 1996 in which several climbers died, including two commercial climbing guides. Anatoli Boukreev was a guide for one of the companies leading expeditions and he played a central role by rescuing three of the climbers in his group when they became lost high on the mountain.