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Standard English developed not only at the expense of Latin and French, but also at the expense of other, 'non-standard' social dialects (and of the other languages of Britain – Welsh and Gaelic, and especially since the Second World War many others, including a number of Asian languages). Standard English was regarded as correct English, and other social dialects were stigmatized not only in terms of correctness but also in terms which indirectly reflected on the lifestyles, morality and so forth of their speakers, the emergent working class of capitalist society: they were vulgar, slovenly, low, barbarous, and so forth. The establishment of the dominance of standard English and the subordination of other social dialects was part and parcel of the establishment of the dominance of the capitalist class and the subordination of the working class.
(FAIRCLOUGH, N. Language and Power. New York: Longman, 1989.)
The expression part and parcel in the text means
