Passage Summary: Since the 'big players' of the past (like the church) paid for art to keep it alive, the government today needs to step up and do the same thing.

Conclusion: Contemporary governments are required to provide financial support for the fine arts.

Reasoning: Historically, the arts required large subsidies from public-sector entities to survive, and modern society has an obligation to maintain this cultural heritage.

Analysis: The curator assumes that if the old public sectors are gone, the government is the only entity left to foot the bill. But what about private donors or corporations? The argument requires the assumption that the arts cannot survive on their own or through other non-governmental means in the modern era. You are looking for a link that makes government funding the only viable way to fulfill this 'stewardship' obligation.