It would if they read it- they may not end up as a believer, but they would be able to make an informed choice.

Examples of an informed choice.
Effects of Tobacco Smoke are made public and the public continues to smoke.
The effects of certain foods and eating habits are described as detrimental to health and the public that is in large aware of these facts, continue to maintain habits that are unhealthy and eat foods that are not healthy.
People are starving all over the world and the world continues to be amazed they continue to starve, when the world makes the choice to do nothing to change.
Bush invades Iraq after being informed by the intelligence community of the most powerful nation in the world that there are weapons of mass destruction. But they fail to find any.