Melinda French Gates supports the Gates Foundation's plan to spend its $200 billion endowment by 2045 on global health, emphasizing the original intent to give back to society. The foundation will double its spending to combat diseases and poverty. French Gates believes billionaires have a moral obligation to contribute, hoping for lasting positive impact even after the foundation closes.

Source: Bill Gates' ex-wife opens up on his plan to give away wealth: 'Think it's...'