Many bracketed portions in the scriptures, influence of foreign myths and unscientific teachings … etc show that scriptures have been corrupted. Even when they are not corrupted, religious teachings have often no effect even on direct disciples (when Jesus was teaching, his immediate disciples were thinking about who was going to be first in the organization—something that happened in all religions which led into their infighting and divisions)
At the same time there are many good people among materialists, why? Because they are led by an uncorruptible teaching available everywhere:
1) The incomprehensibly vast size of the universe teaches how insignificant our earth and all its inhabitants are (gives no basis for anyone to feel self-important)
2) The way planets and stars act too teaches us humility! They move around keeping to their orbits just like vehicles follow lane-discipline on a busy express highway (as though submitting themselves to some unseen authority).
3) Plants produce fragrant and beautiful flowers and trees produce fruits for others to enjoy (not for themselves). They too are living lessons of humility.
4) All the stories and histories written show that those who pursued self-importance reaped misery in the end.
Thus humans are soaked in the information that ego means trouble (conversely, going egoless means peace and prosperity)