I think that everyone has something about themselves that they feel is their weakness... their 'disability.' And I'm certain we all have one, because I think of a disability as being anything which undermines our belief and confidence in our own abilities.
Whenever the strength of a belief strongly steps into the foreground, we must infer a certain weakness of demonstrability and the improbability of that belief.
If weakness may excuse, What murderer, what traitor, parricide, Incestuous, sacrilegious, but may plead it? All wickedness is weakness; that plea, therefore, With God or man will gain thee no remission.
The egotistical ambition to always want to earn more money harms both the company and the individual himself. That is the biggest weakness of many managers - the financial crisis has proven this.