Your thoughts could form a best practices guide to wearing fine watches. Most of the people here will, of course, not strictly practice what you preach.
For public service and prominent leadership positions, there is a sense that the positions themselves hold great honour. It is up to the holders of such positions to decide whether wearing an expensive watch will create a distraction or set a positive tone for those who pay attention to such details. The leader of my country wears an IWC Portuguese Regulateur and it's a choice that suggests a respectable defiance of the status quo, as politicians in my country are always aware of appearing out-of-touch. I avoid reading the tabloids, so I have no idea if this gentleman is an avid watch enthusiast.