Social climbing : Trying for a better job :: Passing : Demanding equal rights?

Speaking of careers, I was wondering when the pro-Roma backlash against the anti-banker Drag Me To Hell would start. (I found it a very entertaining movie, and somewhat interesting for the contrast between its multi-ethnic casting overall and the old-fashioned depiction of an evil Gypsy villain.) But the review I saw that highlighted this issue also chose to attack Christine, the main character, for her "social climbing." Do people of all classes really hate climbers? What is it to be a climber? Is it the obviousness of our mucky striving? The inability to know one's place? The forsaking of roots and beginnings? Was Christine's true offense her failure to embrace solidarity between urban little old ladies and poor rural farm girls?