Are you talking about essentially real world tasks, that the game binds together the 'players' and exchanges information to help them coordinate to achieve these tasks? It sounds a bit like how I'd imagine the freemasons to work.
Most of the time people are doing things for individual gain rather than working together for the common good of a community. A game (or website) that puts people together to achieve useful goals is a good thing to aim for. Although I'm a capitalist, I think it would be nice if 5 days a week people worked for themselves, but every other weekend they might get together to do some community projects. Or the unemployed, who are in some counties paid to sit on their backsides.
Of course how you quantify something as 'good' is up for debate. If you want to know how to manage an area you should pay attention to Ecology. Especially the concept of the carrying capacity. Strictly speaking, environmentally wise, the best thing a population can do, is to kill all the humans, or at least not have any children. That way the environment can return to nature, without pollution, and plants and animals can enjoy the world. Of course, we do not live in cut off communities. If some region gets rid of the population, and has a rich environment, other humans will invade the area and takeover.
Personally I would see improving the world for humans and animals and plants to be more of forming a better balance, with a far lower human population, and less reliance on fossil fuels and polluting processes. Good luck persuading most of the world's population that having 10 children is not their 'god given right', but I guess that's why we have wars and plagues.
Other positive things could include things like more environmentally friendly transport solutions, such as bicycle superhighway networks away from roads (perhaps with rain / wind shields), or cheap well designed low friction public transport such as monorail, or canals for slow bulk freight. Also highly insulated houses in cold areas to prevent senseless use of energy on heating.
I often think that the trouble in 1st world countries is that we have the money to do good things, but there are too many regulations preventing people from undertaking projects (you need planning permission, building regs etc etc). You are more likely to be able to build innovative community improvement projects in third world countries, where either the regulations don't exist, or you can pay off officials.
