I think this song is about how "the man" is always asking for more and even when you give everything you have you still must give more and how even though the speaker is depressed and "awful" "the man" loves he/she because "the man can manipulate them more.
I think this song is about how "the man" is always asking for more and even when you give everything you have you still must give more and how even though the speaker is depressed and "awful" "the man" loves he/she because "the man can manipulate them more.