Some people do completely absurd things against the natural drive of self-preservation, motivated by completely absurd reasons. I may never understand.
Isn't riding a motorcycle 'against the natural drive of self-preservation'? You're in a unenclosed vehicle that can go 200km/h and the only shock absorption you have in a crash is some air time and then your body. Also people often enter this sport motivated by either thrill or vanity.
Just some more food for thought