Honestly i would go for a church/sect. I have friends and pardon me for religious people here but it is tax free. I can profit but i would also help the poor and give free services and shelter to them. I think its a sustainable income and with correct processing.
I guess this is not a good idea that you are going to use the church or sect for your own good. Why are you going to hide your own agenda for your own sake behind the names of the church. It is better if you are going to get profit the way it is with other businesses but not with the church power and still you have good purpose for it.