It is greedy to not let anyone use your stuff.
Dora's roommate Kim has an interview in the morning and her iron broke, she knows Dora has an iron.
Dora wants Kim to leave for the interview.
Dora grabs her iron and lends it to Kim, wishing her well on her interview.
Dora tells Kim that her iron is broken as well and that her outfit looks fine as is.
Kim irons her outfit and her interviewer finds her appearance to be very professional.
Kim's interviewer is unimpressed by the state of her clothes and holds it against her in the interview.