This. Even in Christian circles, many major works remain in Latin because publishers know they can't profitably commission the effort. This creates a situation in which for-profit publishers occasionally fund non-profit translation efforts to preserve the history.
For example, a shockingly small amount of John Calvin's works are translated into English. Regardless of what a person thinks of his theology, his influence on the rise of democracy in post-Reformation Europe and the Americas is staggering.