But these maybe wrong since in this world there are lot of blackmoney is available which were not recorded by any governments.
In my opinion the politicians from the third world countries can be in the richest persons because they were stealing all their country's taxes.
It may be possible, since the African presidents are very corrupt and practically take all the wealth of their country to pocket. then imagine that an African president will be in government for 50 years and take all the wealth of the country to his pocket, this guy gets very rich. It will take gold, silver, oil, diamond, everything to your pocket and for 50 years.
Many politicians in third world countries had earned lot of money in illegal manner.
Unfortunately, this is true.
Those people are the richest based on Google. There are a lot more that we do not even know about. They just down let people know how much money they have.
People who have illegal money obviously will not want their names to appear in public
A rich man will never say how much money he has.
But these guys said and why? they want to be called "the richest in the world". they want to get into history, just like the scientists, politicians, philosophers, astronauts who recorded their names in history, Adolf Hitler entered history in an evil way, Isaac Newton entered history in a good way. But these days there are few ways to get into history and they are using their money to get into the history