The Semantic Web will be shaped by human choices, which implies that it will be political. To argue that point I suggest that schemas, one of the Semantic Web's building blocks, will be political in at least two senses. A schema represents an understanding of a world-chunk. The schema may be formally or informally expressed, and the understanding it contains may be formal or informal. Making machine representations possible is the immediate goal of schema creation.
Schemas are thus always relative to the interests of a person, an institution, or both.