What you're talking about isn't a failure of willpower, dedication or ambition.
It's a failure of knowledge. It's a failure of knowledge of the resources that are available to them, and it's a failure to awaken from the Samsara of self-doubt.
Inri137's doing the Buddhist thing and trying to shake people awake. These are skills that you can acquire. Sure it's modulated by willpower, dedication, ambition, and some natural talent, but that's not the important part imo. To quote FDR, the only thing we have to fear is fear itself.
You are right, but I didn't say that you couldn't acquire these skills. I was trying to be particular with my choice of words: "You can mould yourself [...through what] you had to start with".