Religions hold that their positions are that of the immortal and infallible creator of the universe and hold them sometimes on pain of executing nonbelievers thousands of years later. These lies created from nothing are so resilient because its difficult to amend what you held to be divine truth.

Scientific theories carry with them the premise that they are merely the best theory so far and are subject to revision as new data comes to light. Some may jealously guard the fruits of their labor against newer better understanding and people both lie and fail to do the proper due diligence but the process though flawed because it is carried out by flawed humans is fundamentally different and better.