Scarlett’s feeling that it’s foolish of Ashley to refuse a chance to escape is similar to her feeling about him enlisting in the war. She doesn’t understand why he can’t do the practical thing, and why he is so concerned with the Southern honor that is only getting everyone killed. Ashley himself confessed that he didn’t believe in the war, so his loyalty in the Cause seems, to Scarlett and Rhett, like a lack of conviction. In this instance, Scarlett and Rhett are of the same opinion.