Regardless, I would make a site where people could play a game that is actually a simulation of certain aspects of society and whose purpose is to let regular people attempt to solve pressing social issues. For instance, someone could play a simulation where they come up with a way to provide drinkable water at lowest cost to people in areas where it is difficult to get clean water. Or a simulation where people come up with cost effective, both financially and ecologically, ways to get rid of garbage.
The game itself would look cartoonish and would have fun sounds and cute little characters including an assistant who informs the user of certain crisises that the user's actions have caused and that need to be fixed. The game would be enthralling enough that players would just think they are playing a really fun game but informative enough that the data collected is realistic and useful. The best performing players' simulations can then be used by governments or municipalities to solve actual problems.