Actually, I believe the IA respects robots.txt retroactively, eg. putting something on the disallow list now removes the same page scrapes from a yeaer ago from public access in teh Wayback Machine, but I'd love to be corrected on that.
(Remember, robots.txt is not a privacy measure, it's supposed to be something that prevents crawlers from getting stuck in tar pits!)
[1] https://blog.archive.org/2017/04/17/robots-txt-meant-for-sea...
[2] https://help.archive.org/help/how-do-i-request-to-remove-som...