"Corporate culture" sounds very contemporary and chic-in two senses: First, it is half trendy and half highbrow (in the artsy way "cultured" suggests). On the other hand, despite its entrenchment in popular business jargon beginning in the 1960s' era of flowering of "social consciousness", it resonates with very sober scientific concepts, e.g., anthropological concepts of culture, which in many respects are the diametrical opposite of modern chic, instead comprising eternal, ancient and often primitive, unsophisticated elements and universals of cultures past and present. Nonetheless, when business experts address "corporate culture", there is a tendency to in fact equate it with nothing more than "corporate policies", while retaining the anthropological "feel" and status of "culture".
To grasp what corporate culture is, is imagined to be, what it should(n't) be and why it is important, one eye should focus on the chic and cachet of the branding and marketing buzzword and another on the "business anthropology", sociology and systems theoretic understanding of it (while more deeply, abstractly and anthropologically interpreting the corporate policies that are presented as specimens of good or bad corporate culture).
Some office-oriented attempts to frame and investigate "corporate culture" are based on check-list questions that indeed capture some, but (despite optimistic claims for them) not enough, elements of corporate cultures (while still not distinguishing them from mere policies and practices).