Different ornamental items - how internal and external pieces of jewelry might be treated differently in halakhah. Context matters, and individual sensitivities matter too, with the onus on the person doing the "looking." Also: Hair decor, including wigs, all presumably for beautification - and therefore needing adjudication as to whether that's carrying on Shabbat. Conclusion: appearance always has been, and always is going to be important to people. Rabbi Akiva: and so a person doesn't have to go out of her way to look unattractive.