Honestly, I've probably been around long enough/been helpful enough/earned enough shinies to justify the position if I put my hat in the ring... but I like the idyllic life of no responsibility. I'm good, I know my place, I lack ambition (in this particular arena), etc. You guys can handle the headaches while I frolic as carefree as a superhuman genegineered psycho-conditioned killing machine in servo-assisted ceramite armor who shoots an automatic RPG rifle, as it were.
What sphinx of plascrete and adamantium bashed open their skulls and ate up their brains and imagination? Imperator! Imperator!