Theists, why you look more outward rather than looking inward ?

Mankind has a tendency to view what he has as special, whether it be property, opinion or faith...tis the nature of the beast." Religion is a man made item and tends to be considered property at times. Islam has espoused that the faith is a "way of life" and not a religion hence should be shared which in it's true form would be devoid of sanctimony.