Whereas the poor sods in Batista time had a life of luxury. Got it.
Although Batista, in his 2nd rein, was illegitimate, Cuba at the time was recovering from its great mistake of investing nearly its entire economy into sugar in the early 1900s. During the 50s, Cuba was transferring to a modern economy, doing very well at it, and it's "working" workers were the 8th best paid in the world.
In the hemisphere at the time, it was (per capita, that includes everyone) the 5th highest paid, 3rd longest life expectancy, 2nd in rate of car ownership. They had a better literacy rate then any other island nation, and a thriving middle class on par with the USA. The cosmopolitain areas, especially Havana, were better off then most other cosmopolitain areas in Europe. Havana was a glittering modern city during the 50s.
Cuba was considerably more well off then what we are lead to believe by the Castros.
Now, unfortunately, racism was a bigger issue in Cuba then in the USA, and those who were black had it real bad. This constituted much of the poor and a civil rights movement had not started yet. Additionally, those living in the rural sugar plantation country were also very bad off, especially if their main source of income was harvesting sugar (which only took place 4 months a year). Being so rural, it was also difficult, just logistically, to get proper medical support to them. Also, Cuba had no public education system, which added to the problem. However, just like during the early part of the 1900s in the USA, there were many institutions that provided help to the poor. Many private hospitals gave medical help to the poor. Things were getting better and progressing, just like had in our country.
Castro ruined all this. He was able to cut inequality though by making everyone equally as poor.