Babal Khate,

I think there is something in each of those people that can be admired. Whether it is Obama turning a perceived adversity (his race and inexperience) to his advantage or Prachanda, a man from a humble background, shaking up the Nepali establishment and changing it's face, most individuals on that list have done things that have, at some level, inspired others. They've all done plenty too that can be criticized but I guess that's a topic for another conversation.

"What is the greatest/best way to improve your life?"

I don't know if there is an easy answer to that but I think at the end of the day it's about finding your passion and following it. I find passions and priorities  change over time because of which there is a need for us to keep exploring, rekindling and reconnecting with our passions and motivations to lead a more fulfilling life.

At least in my case that is true. I am sure others have their own ideas about how to make their  lives better.