i.e. If a person believes in Olam Haba and the convening of a Heavenly Court upon the neshama’s arrival, that will cause a person to act differently.
I refer to religious on the inside–Judaism needs to be judged based on it’s inherent value, not judged only based on the people who practice it. A person’s inherent goodness is judged by Hashem. We as humans don’t have that insight. We each need to be our own judge,,,helps us get further in life and helps us not waste our intellectual and emotional energies.
Also, if a person doesn’t believe that it’s not the truth, how do they know they’re right? What if they’re wrong? that’s just not worth it……