The OP literally chose to make it a contest, complaining MacKenzie wasn’t doing as much as him percentage wise.
The OP argued, that assuming she had donated 59B out of the total of 60B, while this would (probably) be a higher percentage than the OP, it still would not be "impressive". She would retain 1B, which, I hope we can all agree, is more than enough to live a wealthy life, and certainly more than the 3k left on the account of OP.