I get what you're saying, but I do believe - as a whole - religion is good. If you are a humanist (like say for example, June Callwood) but don't practice religion, then that's fine. Christ even said "Those who do good in name of others, or for themselves, do it also in the name of me." I very much doubt that God would find Mrs Callwood a bad person for her atheist beliefs, but rather find her a good person for the actions she did in life.
You must remember that not all people are self motivated to do good in the way that Mrs. Callwood was. Many people, like say, Mother Theresa did so in the name of not only humanity, but God too.
As you probably guessed, I am an active member of a congregation. A few years ago I met man at a homeless shelter. He had an addiction to crack cocaine. What really got him motivated and active was the church. Since then he has become a devout Christian and has ended his addiction and has found employment. He is now living on his own in an apartment. I spoke to him recently and he told me he hopes to open a homeless shelter of his own one day. Say what you want about religion, but to me, he is Christ's miracle still alive and still relevant.