You aren't the first one to reason like that. A new crop of historians have been revisiting the Revolution and looking at facts and documents (including official post-Revolution government sources) as they are, without the tinted glasses of politics. What they have found was that Cuba was already on the way up when Fidel & Co. happened on the scene, and that many things actually went down after the Revolution - like a nascent but thriving rock and pop music scene, driven either underground or into exile and replaced by today's musical poverty (Mother was in Cuba a few years ago and was almost driven crazy...being a former musician herself she knows her notes) on Guevara's orders. No mistakes, I'm a fan of Compay Segundo and songs like "Chan Chan" and "Pico y Pala" but I do like variety... :-D
Concerning names, you could letter the locos "The Smith Sugar Company" - many Cuban steam locos carried their owner's names in plain English on their tanks and tenders. Lots of examples in Chris Walkers' "Narrow Gauge in Cuba" book, a must-have even if you aren't into narrow gauge.
Cheers NB