I was reading this article, which (correctly) says that a fast mile is more impressive than a slow marathon:
https://www.outsideonline.com/2230186/fast-mile-more-impressive-slow-marathon
The average marathon time for young men is around 4 hours, so I'm pretty sure anything worse than that is considered slow for that demographic. Granted, a 5:30 mile isn't blazing speed either, but it's a lot closer to the WR than the 4 hour marathon is.
So, which one takes more training and commitment? I'm not a miler, but when asked what my times are, I tell people that I run a five and a half minute mile since it's a distance that most people can relate to, as opposed to something like the 400, which is my main event. But a lot more people are impressed by the 4:57 marathon I did, which I ran on a whim after track season was over.