[Brutha]

But this mask makes him expend too much energy, and once he holds a position of power in society, he tends to show his other side. Picture Hitler.

Hitler did things that he thought were the right thing to do. Before and after he got his power in society.

in this case, the true leader has enough confidence in himself to admit he was wrong. A cocky leader would never admit himself to be wrong.

I haven't read much of the bible myself, but do you think that Jesus admited somewhere he was wrong?
I also think that Hitler never admited he was wrong.

Can it be Learned? Hardly. Someone who wasn't born bold will have a hard time to learn how to be it. It demands a lot of energy to be bold unnaturally, and until the habit is developed and implemented in the values core, it will take months, at least. Most people who try will probably just give up in the middle of the way or forget about it, given the enormous amount of everyday focus that is needed.

Because you don't know how to learn to be bold, doesn't mean that their isn't a way to do so.

Gook Looks: A true leader has good looks. He is tall and handsome (there are exceptions; napoleon was very short, joan of arc was a woman -commanding armies in the middle age-, and winston churchill wasn't exactly the model of beauty). But it has already been proved by studies that people that are tall and handsome do better in politics than those who aren't. Fact.

Besically you are saying: Well those people I think are true leader don't have good looks, but a normal leader archieves better results when he has good looks.
Your conclusion is that by gathering those enough of those factors that make a normal leader a bit better, you get a "true leader".

In general you make the mistake to assume that a "true" leader is better at tactis than a "normal" leader.

Sun Tzu: “All men can see these tactics whereby I conquer, but what none can see is the strategy out of which victory is evolved.”

"True" leaders are good at strategy. Strategy counts.

If you look at games like Chess and Go, you find that they are no people who are born good at Chess or Go. But deliberate pratice is also no easy task.

The best shot:
Go to Toastmasters and train public speaking and read (and understand) The Art of War, Greene, Clauseswitz and Machiavelli (maybe add a few additional Asian authors).

Understand your enviroment and join the winning movement (luck plays here a huge part).