Yoongi did not look down on her dorm aunt. He remained polite and respectful.
Regarding that
“he doesn't do the dishes because the dorm aunt will come for nothing",
I think that means that  he doesn't want the aunt to feel unsatisfied ++

Let's say you're a worker and you get paid because of the services you offer. Will you feel satisfied on getting paid when you did nothing? I think you won't be. ++

Let's take it the other way, if you are an employer will you be happy or willing to pay someone who did nothing? I bet most of us won't be. (I'm sure yoongi will still be willing to pay tho.) ++

And how can you be so sure that yoongi did not help on cleaning when you don't know them personally nor see them always.++

This is only my opinion. I just made this thread because yoongi not being able to wash the dishes is a big deal to antis and it may cause misunderstanding not knowing that he cook, drive, rap, sing, produce music, write lyrics and he is an organized person.