We hate to do that, but we feel disrespected. If the pastor, church board, and church membership are not stating opposition, your task is formidable. That decision should be made in the light of factors additional to your feelings of being disrespected. As our church's personal ministries leader I have tried every inducement I know to get members involved. However, it is very difficult.
Most people seem too busy or afraid to give Bible studies or do other types of service.
The only motivation to bold, sustained witness is excited appreciation for Christ's great love. Every other appeal is a lesser inducement destined to fade and fail. No other stimulus is truly sufficient. You do not state what methods you have tried, but I suggest that revival is what is really needed. It is the cross, not certificates, plaques, bulletin listings, graduation exercises, trips, and tours, etc., that produces true motivation.