As a CEO, what is your main objective? Some think their role is to make employees satisfied. Some try to "change the world" or make their customers happy. Others believe they are there to make amazing products. They are all wrong.

How important is culture when running your startup? Some Silicon Valley gurus will tell you culture is very important. Peter Thiel says "run your startup like a cult" and his point is that culture will define your startup.

Other smart people will tell you to focus on execution, since you can't consciously affect your startup culture anyway.

I think they are both right.

Korean visitors who come to our offices to meet my partners and me are often puzzled by our internal discussions.

The first look of amazement usually comes when they see how we disagree with each other. More often than not, once one of us will say his or her opinion, someone else will express a completely opposite opinion. Out loud. And in front of everyone.

 An important step for Seoul's entrepreneurs may be nothing more than a shifting mindset.

The young CEO concluded his presentation and looked at us, breathless. After a long explanation of the complex algorithm he had developed, his eyes were wide and expectant. Having spent the better part of the past eight months working on a mobile application, his team felt ready to launch, and he had sought us out seeking mentorship and funding.