Difference between being rude & aloof

Hazrat Hakeemul Ummat Mawlana Asharf Ali Thanawi ra said:

“It is rude not to fulfil the right of others due on one’s self. Whereas, not to demand rights of one’s self from others is being self-sufficient (istegna). (This is required).

Waaz: Huqooq e Quran
, page 28