Meeting someone does not make you my best friend forever, I meet people all the time and they do not come home with me ever......so if there is a problem with that then it is not my problem.
I have met tons of important people down to a former president when I worked in politics and even ambassadors, movie stars, all in another life time, not one of them became my BFF.......
I just don't get this attitude that a former president must be invited to the wedding as if he is the star of the wedding.........so what if Harry and Obama worked together for a charity, no big deal, it does not make or break relationship ever. Harry has worked most of his adult life for charities and knows most of them on a first name basis......does that make all of them his own personal friends.......don't think so! He needs those high powered, high profile people to come to help him for they have the bucks/money and they can help his cause. Why the total outrage if a former president is not invited by some here, who is going to be blamed if the former president does not get an invite......done with this conversation period.