The cruise industry has a pretty big impact on the global economy, to the tune of $150 billion. It also supports 1.17 million jobs (directly, not including the ports visited), meaning $50 billion in wages.
With cruises (and travel in general) eliminated or greatly reduced, the economic impact is BIG. Not only for the cruise industry, but for the embarkation/debarkation points and the ports of call.
The cruise industry greatly benefits the economy.
Do you want to know more? Download this document put out by Cruise Lines International Association. They did a lot of investigation and study to get this information.