Create a system of activism and unsolicited volunteerism. Perhaps a system of self appointed callings? (or something to this effect).
For any free system to work people need to feel like they have a voice, and a system or avenue to effectuate change. There are many people with passion burning inside of them who have not yet decided whether they are going to focus that energy on selfishness, selflessness, unity or division. One of the church’s most important jobs in society is to lead people to focus their energy/passion on selfless work which leads to unity. This is one reason why “every member needs a calling.” But more than this the system must allow for advocacy where people can direct their energy toward the things God puts in their heart.
The evangelical community tends to be more effective at starting non-profit service organizations than Mormonism or Catholicism. I believe this has to do with a culture of activism stemming from the lack of centralized authority. In Mormonism, members often feel like they are not authorized to start a radio ministry or an organization which promotes activism in teaching the public. Because religious activism has the potential to spur divisive (apostate) groups, church leadership has almost ubiquitously shut down such activities. Forbidding members to meet in their homes and talk about church topics or start organizations that might threaten church authority. This then create an atmosphere of fear and dependence among church members. I believe such a climate does more harm than good.