Nothing to worry about. Feathers can get askew for a number of reasons, but I can't think of a situation where it's anything to be concerned about. Usually, the feather just got bent during the daily romping and napping, and it will either straighten out or be replaced when the new feathers grow in.
Nope, nothing to worry about. Often chickens will just jam their wing into something or yank the feather with their beak in the wrong way, which bends the feather. The feather won't straighten out now that it is bent, but it shouldn't harm the bird.