Writing in The Harvard Business Review, Tomas Chamorro-Premuzic, a CEO and business professor, had some surprising conclusions about self-confidence and leadership. Thomas wrote:

There is no bigger cliché in business psychology than the idea that high self-confidence is key to career success. It is time to debunk this myth. In fact, low self-confidence is more likely to make you successful. After many years of researching and consulting on talent, I've come to the conclusion that self-confidence is only helpful when it's low. Sure, extremely low confidence is not helpful: it inhibits performance by inducing fear, worry, and stress, which may drive people to give up sooner or later. But just-low-enough confidence can help you in the following three ways:

1. Lower self-confidence makes you pay attention to negative feedback and be self-critical.
2. Lower self-confidence can motivate you to work harder and prepare more.
3. Lower self-confidence reduces the chances of coming across as arrogant or being deluded.

Of course Christians would add a fourth and most important benefit for low-enough self-confidence—it helps us put our ultimate confidence in the Living God. But Christians can agree with this article's conclusion: "In brief, if you are serious about your goals, [low-enough] self-confidence can be your biggest ally to accomplish them. … It is therefore time to debunk the myth: High self-confidence isn't a blessing, and low self-confidence is not a curse—in fact, it is the other way around."