As powerful tools, science and religion are each methods. To what aims do we wield them? This is why the science and the religion purists, even if they are intelligent people, are defective in character due to their attachments.
One denies the other has great potential, but only if assigned the appropriate task. Example: validating information vs. motivating people.
They each assert they are the better method for attaining several of the other's goals. Although it can be used as such, a wrench isn't the best tool with which to drive a nail.
The same thing occurs in personal relations. The networking guy doesn't want computer programmers wiring up any of his computer networks. The teachers don't want educated janitors instructing their students. Break these customs and conflict occurs.