ANSWER: Your brand statement tells your audience what your business and products can offer, that is different from what other offers. It shows how you're able to be better than your competitors in doing that business.
Because you were able to distinguish your self from others, with your brand statement, it shows how competency you're in leadership. Which has helped to develop your leadership skill.
Your brand statement can also improve your leadership skills, by giving you the opportunity to see areas you have to improve, to be able to beat your competitors.
He was once an ally of the shah, Kai Kaous, and feels the shah has betrayed his trust. -He has been a long-time friend of Rustem and wants to see Rustem on the throne.