I mean, it's an impressive feat when someone works full-time while attending college full-time, but it's also a sign that something is severely broken in society that they need to do this.
That shouldn't be what you have to do to get an education. Not everyone has whatever magic chemical balance allows them to do that without having a mental breakdown or collapsing into a dark star.
If you're doing college or grad school, you should be able to actually focus on what you're studying, and also have some amount of downtime so your brain doesn't turn into a fricking ulcer or something.
But instead of fixing the system, it's easier to laud those select people who are able to somehow make this tremendous test of stamina and sanity work for them.