What is the real purpose of the Bill Gates Foundation? Is the purpose to perform charitable functions, or is the purpose to provide a source of income for people whom Gates and his heirs favor, as well as a source of money to advance those causes they favor, all while ensuring that the money in question dodges the taxman unless or until it's paid out as ordinary income to the Foundation's employees?
I don't know what the "real purpose" is any more than you do.