Some thoughts to flesh out

1. Adding win states and game-like mechanics into stuff to postively encourage peoples actions (for example: visible energy usage meters, displaying current MPG in cars, points & badges in software). This idea seems to have the potential to be very powerful.
2. If you yourself want to make a positive impact and a meaningful footprint on the world, you need to recruit people that will also take action. You need to be offering those people a compelling goal, one that will also offer them the oppurtunity to be part of history. Your goal, your message needs to be clear.
3. Retail anchor tenants (i.e. you have a new shopping centre and literally pay a big brand to move in). Again seems a powerful idea if transposed into other fields.