Believing in germs has a pretty big effect, yet most people have no problem believing in germs (or atoms, or electricity, or the Earth moving around the sun). All they need is a couple of scientists to say "there are these invisible things that cause disease" and they're perfectly happy to believe the scientists.

It may be that scientists themselves had trouble believing in continental drift or germs when they were first introduced, but we're not talking about scientists here; we're talking about everyday people who get their knowledge from authorities. Everyday people have no trouble believing in germs or atom bombs when told by an authority, and evolution isn't any more absurd-sounding than those. They only think evolution "sounds absurd" because it contradicts their religion.