Are not entirely imaginary, but have been achieved at great cost. Think of the educational and health benefits as being like Eastern bloc countries and their Olympic medals: some were won fair and square, some were not, but you have to ask 'was it worth it?' about all of them. For example, on infant mortality:
"Cuba does have a very low infant mortality rate, but pregnant women are treated with very authoritarian tactics to maintain these favorable statistics,” said Tassie Katherine Hirschfeld, the chair of the department of anthropology at the University of Oklahoma who spent nine months living in Cuba to study the nation’s health system. “They are pressured to undergo abortions that they may not want if prenatal screening detects fetal abnormalities. If pregnant women develop complications, they are placed in ‘Casas de Maternidad’ for monitoring, even if they would prefer to be at home. Individual doctors are pressured by their superiors to reach certain statistical targets. If there is a spike in infant mortality in a certain district, doctors may be fired. There is pressure to falsify statistics."
Read it all here.