I'm having trouble understanding what you're hoping to bring to the conversation. The basic problem is this. There are a great deal of resources that can be brought to bear on solving problems in the world. There are lots of philanthropists in the world, with lots of money.
The problem is picking the right problem. There are big problems, like hunger. No matter how many resources you have, you're never going to make a dent in world hunger.
There are smaller problems, like dam building. One could, conceivably, build all the dams in the world that need to be built. But just like the big problems, there's never going to be any shortage of these smaller problems to solve, and each effort needs to be managed and championed.
So you can't just solve all of them. You have to pick one at a time and throw everything you have at it. The problem is not resources, but ideas. We need really good ideas for how best to go about making the world a better place. A good idea needs to be simple, because it has to be scaled.
HN is a forum where one good idea could inspire someone to make a Kickstarter campaign, that could attract the attention of someone like Bill Gates, and could improve the lives of potentially millions of people. I wish more people took that seriously.
Malaria nets have their problems. But they've also helped eradicate malaria in many places. People look at stories like this and they think, "aww that was a stupid idea anyway! Silly billionaires." It's not a stupid idea. It's a great one that we need more of.