The people of the world would benefit in many ways by reducing or eliminating global poverty and by increasing education levels.
I believe less poverty and more education would reduce violent crime and other forms of criminal victimization. Poor and uneducated people tend to turn to crime and anti-social behavior more often. The same happens to other people raised in poor and uneducated neighborhoods.
I believe less poverty and more education would reduce terrorism. Actual terrorists generally come from more affluent backgrounds because poor people have too many personal problems to get so actively involved in politics. However, anger and hatred over the perceived injustice of the existence of poverty and socioeconomic inequality helps create and empower terrorists. Additionally, lack of political rights does correlate with terrorism, and a less poor and better educated public often achieves more political rights and equality without as much violence. In other words, though terrorists may not be poor, I believe terrorism thrives in a world with poverty and lack of education. (Terrorism is never justified, in my opinion. Nonetheless, we need to counter the contributing factors if we wish to stop and prevent it.)
I believe less poverty and more education would lead to more wealth and happiness for all. Investing in saving children and communities from poverty helps create a more productive and wealthy society. Educated and working people living in a fair and free society not only benefit themselves but they benefit others. Well-educated and hard-working people will produce wealth in this cooperative system that we call a society. For example, how much better off would the rest of us be if poor, uneducated and homeless single mothers had received excellent education and now had a good job providing valuable services to others for great pay that kept them and their families out of poverty? How much wealthier would the entire world be if those starving Ethiopian children instead went to great schools and performed useful jobs keeping themselves out of poverty?
Breaking the poverty cycle will help us all! Do not look at poverty alleviation as charity. I doubt we will end poverty if we look at it as charity. Charity cannot end global poverty. We need to recognize that helping poor people help themselves not only helps them but it helps us too. To that end, we can find mutually beneficial social interactions and movements that alleviate poverty. Namely, I recommend investing heavily in small businesses and in education including both investing in organizations creating and running schools as well as investing in students with extensive student loans. We need to find ways to get better schools and better paying jobs into poor areas or ways to get poor children and unemployed people out of poor areas and into areas with great schools and great jobs for the educated.