So many men who are in positions of leadership and influence keep their faith "private". That always bothered me. I am a Christian. I let people know that about me because it influences my entire worldview. Being a follower of Jesus means I am created with a purpose, for a High Call, and should not base my potential upon past circumstances or what I see around me.
If you can't talk about your faith, defend your faith, reason with others about your faith, then your faith is weak. We're called to be salt and light "so they may glorify your Father in heaven." We can do a lot of good in this world without connecting it to our faith, but that's that what we're called to do.