I dont believe in a god, but try to live a very moral life.
The pope's butler, who I assume DOES believe in god, has just been sentenced to 18 months in prison for stealing confidential documents.
Believing in god does not always mean a person is moral, in fact in histroy many people who claimed to believe in god have proven to be very UN-moral, like many catholic priests.
p.s. I am also very much against people who never set foot in church having their child christened just so they can have a family party (I am not saying this is the case in your family).