During his military career and presidency, new nations in Central America were facing numerous problems: William Walker's invasions, liberal attempts to overthrow the Catholic Church and aristocrats' power, the Civil War in the United States, Mayan uprising in the east, Belize boundary dispute with England, and the wars in Mexico under Benito Juarez.
This led to a rise of caudillos, a term that refers to charismatic populist leaders among the indigenous people.
Many regional and national caudillos were interested in power for their own gain.
He led the revolt against the liberal state government of Mariano Galvez in Guatemala, and then was instrumental in breaking up the Federal Republic of Central America that the liberals wanted.
As a result, once the liberals took over power in Guatemala in 1871, Carrera's character and regime were dismissed and demonized, making him look as an illiterate who could not even write his own name and was a puppet of the aristocrats.
Over the years, even Marxist writers who wanted to show how the native Guatemalans have been exploited by the elites completely ignored Carrera's interest in them and accused him of racism and being a "little king".