Firstly religious leaders play a very interesting roles in the life of people and are seen as role models and mentors some see them as a father figure, so what ever this set of people tell there followers that is what exactly they will all do.
With the numbers of churches and mosques that we have I know if Bitcoins is been enlightened to us through this regions then people will trust and believe in BTC, Bitcoin will surely go more far and spread wide with this ideas.
Secondly Bitcoin is better than saving in a bank because it appreciate while it is been saved in our wallets and it is also an investment, so many people complain from there day to day activities with the local banks of been debited without cause and reducing the expected savings this is not a good reputation and Bitcoin has solve this aspect of issues, with the security of wallets, hard ware and software wallets fraud is been reduced making both the old and the young to believe that they are saved from been scammed through BTC.
#Just my thoughts.
Mate, I know you have good intentions of promoting bitcoin but this I do not think is advisable. You see religion and business, do not mix the both of them up as they are not in the same line. Yes your religious leaders have influence on their subjects but do you think they have control over their business and finance? They can advise them and pray for them to make their choice but can not compell them to invest their money in a business they have not really have clue about. Investment is not all about influence to over your subject to do so but it the already existing speak for itself convincing other to join.