Right... as if the US could not do anything else to help Cuba and it's people. (E.g. abolishing the trade embargo.)
Exports: Many non-US countries can buy their sugar and tobacco beyond their production capacity.
Imports: most US goods are a luxury when you can import food from latin america and anything else from China.
So it doesn't make sense to say that the cubans are suffering because they don't have McDonalds, Coca-cola, Zara, Adidas and Monsanto seeds or because they don't have a market for exporting their sugar and tobacco.
The real reason we won't drop the trade embargo is that it's a very powerful bargaining chip, for whenever the Cuban government decides to talk.
Or would you say "plutocratic" does not apply to the use military force for personal profit? Because the US certainly didn't profit from your examples, even if this doesn't prove the absence of an intention to profit.