Are we, as human beings, created in the image of God for a purpose and therefore our lives have meaning and significance; or are we grown up germs, cosmic accidents, who have no significance in the final analysis?
How we understand God determines how we understand the world; and how we understand God and the world determines how we understand our place in the grand scheme of things! If you deny God then you live to a standard set by man, and since there is no such thing as perfect in the human race, you've significantly lowered the bar on yourself.
Your world view determines so much about how you live. Are your "rights" are determined by mankind and therefore subject to the whim of a changing morality; or are they bequeathed to you by a power greater than man and written in stone? For instance we define our liberties in the United States as the right to life, liberty, and the pursuit of happiness. The pursuit of happiness could mean striving for an eternity of heavenly bliss, or a constant path of selfish satisfaction. The path to an eternity of heavenly bliss is well defined. The selfish endeavors pleasing one's whims is subject to whatever distraction give you pleasure at that moment in time, moral or immoral. Which model would you like your neighbor to live by?
It's okay to probe others to uncover their world view. Sometimes helping others to see the value of understanding what they believe and why they believe it, leads them to course correct. Often times people have a stance and just don't have a reason because they just don't understand. Knowledge applied is power and ignorance is bliss. As leaders it's critical we bring the lost to the truth.