The very notion of Heaven and Hell are an antiquated motivation and deterrent, respectively, for moral or ethical behavior. When a reasonable human being realizes that their behavior and actions are limited by what it is reasonable to do - based on the consequences to those around that individual, those notions are replaced with new reasoned motivational and deterring factors.

I'm sorry for those who still hang on to faith.  Faith is actually, in my opinion, holding society back as it places value on ignoring reason - as surely as believing anything without proof does.