Fair enough. But lets be honest to old Mother Teresa. She might have devoted her whole life to the poor and needy, which is incredibly admirable and which makes her an interesting and great philanthropist, but if she's had Bill's money she could pay for research into and treatment for Malaria (kills 2m a year), other preventable diseases, malnourishment etc. If the wrinkly old bag was able to offer several hundred millions of dollars to the poor, she could have lifted so many people out of poverty. Bill might not be the greater philanthropist, but undoubtedly he will have the biggest impact on helping the poor and needy of the world.
Apologies for referring to Saint Theresa (is she yet?) as a Wrinkly old bag. I'm sure someone will get all upset at my insensitive victimisation of dehydrated persons everywhere.