I think this article is great, except the example you gave about George Bush:
For example, if you dislike George Bush because you think he’s a poor leader, could this be because your own leadership skills are sub par? Then go to work on your own leadership skills, or work on becoming more accepting of your current skill level, and notice how George Bush suddenly seems to be making dramatic improvements in this area.
Your theory wouldn't work in that example, because you would need to have some kind of relationship with George Bush in order for it to work. If you were, say, just a regular US citizen who thinks Bush's leadership skills are sub par, and you decided to work on your own leadership skills, I don't see how that would affect him.
On the other hand, if you thought your brother lacked good leadership skills and decided to work on your own, he would probably be influenced in a good way.