Many world leaders, politicians, presidents and members of royal families were masons. Just to name a few:
Africa - King Hassan II of Morocco was one, today president Idriss Deby of Chad, Denis Sassou N’Guesso of the Congo, Mamadou Tandja of Niger, Gnassingbé Eyadema of Togo, Paul Biya of Cameroon, Blaise Compaoré of Burkina Faso, and Omar Bongo of Gabon are Freemasons.
In England - the Grand Master is usualy a member of the Royal Family. Currently it's Prince Edward, Duke of Kent.
In Sweden, His Majesty King Carl XVI Gustaf is the High Protector of the Swedish Order of Freemasons.
In USA, although many of the founding fathers as well as following presidents were masons, the last one who was a member of The Craft was Gerald Ford, who died recently. That means that there was no masonic leadership in the highest office in US for over 30 years.