If you acquire a billion dollars and give 10% of that to give well, I will say you have been a successful human, since it is "only" estimated to cost 175 billion a year to end poverty in 20 years[0], which means we only need 1750 such individuals each year for 20 years to end poverty, worldwide, forever, which is a goal worthy of humanity[1].
[1] One of the goals of the UN is to end extreme poverty by 2020, a very worthy goal, but this is going one step beyond that and ending global poverty, in all its forms, forever.
[0] http://www.anielski.com/real-cost-eliminating-poverty/
[1] One of the goals of the UN is to end extreme poverty by 2020, a very worthy goal, but this is going one step beyond that and ending global poverty, in all its forms, forever.