That's not the point of the bodyguard example. This is specifically about primary duty. In this case primary duty of the bodyguard is to protect the person who hired him. If there is a shooting who should bodyguard get into safety first - his employer or the other guy in the crowd. Personally, if I had a bodyguard, I wouldn't mind having him stop a purse stealer if he is in range, but that's beside the point.

To the original question, I'm not sure I like the idea or concept of a "leader". Maybe some bad experience from near past, who knows. But I guess in this sense leader means democratically elected representative of the people, correct me if I'm wrong EMFM.

I guess leaders are supposed to look first after the people who put them in power, but even that has limits, at least for me. To make a very blunt example, maybe it is in the best interest of Serbia would be to attack Montenegro and annex it, but I wouldn't support a move like that or a leader who would make it.