"Jackie" is a first name referring to individuals who, while striving to be different, remain mundane reproductions of a society's most typical expectations.
Many will refer to Jackies as beautiful, intelligent, and kind. These things may certainly be true, but they operate within the constraints of a limited perspective. Jackies will always exhibit a few distinguishing traits, but are largely unable to escape relatively "ordinary" lifestyles.
"Though she's explicitly critical of national politics, I knew her name would be Jackie because she still votes along traditional party lines."