looking for an answer

Last weekend followed hubby to a wedding bersanding. Met up with quite a few of his old old colleagues.Chat with R got me thinking again about a question that has been on my mind.let me give you a few kisah benar first.
case 1
husband and wife are teachers. have 2 lovely smart daughters. Eldest wanted to do medicine (and any parents can tell you that will mean RM1000000 for an external degree.) Parent consented to daughter going to UK with the promise that she will help daughter no 2 when the time comes.7 years later. daughter no 1 come back converted to Christianity. Church tell her that all her earnings go to church. church will give pocket money to her. parents devastated. 2nd daughter studies put on halt.
case 2.
Student went oversea to study. good quiet sweet girl with practically no flaws(she was my student. I know). Converted overseas. Gave maximum money to church. survived practically on coffee and instant mee for a year. Come end of course. church say her church work not completed. so to keep her there one more year why don't she fail and repeat. Girl did that. parents don't know a thing.
case 3.
working parents retire. son wants to do a 7 years course. parents gave gratuity to him. since he is a good boy. son finish course, did another year in bible college. decided to leave the degree and do missionary work in east m'sia. Parents eyes are red from crying because now they have to work in their 60's to support themselves. Other Christians tell them they are lucky because the family will be blessed.
case 4
christian elder don't like L. tell another elder that L is possessed. Elder number 2 came under the pretence of praying for L but actually checking if L is possessed.Where is privacy act?
case 5
K is only son to elderly parents.(non convert) Son go on mission trip. Come back and tell parents he is not going back to work. Going to do missionary work at 3rd world.
Questions
1.does the name of religion gives someone the authority to act like God?
2. Who are religious leaders to decides the route a young man takes without regards to his or her background.
3. Is one statement like Your family will be bless, It is your calling, God will take care of things for you, have trust in Him... sufficient to covers every thing?
4. Is this Christianity? or is it man's interpretation of Christianity.
I am sorry if I am opening a can of worms and inviting trouble but sincerely, I have my doubts
My idea of the faith is to help others. be there when they need you, bring some peace and love into the world. do no harm and definitely not pain and tears.Go about with a pure sincere heart, love all irregardless of faith Then God will guide you.If life dish out lemons to you, God will show you how to make lemonade BUT definitely I am not the one to throw the lemons at you.