The Book of James was altered. But isn’t it enough that Luther would remove books entirely so others couldn’t read them? Besides, how many people in 420 until Gutenberg could actually read and write?
Latin was the lingua franca of Jerome’s time, and continues to be the language of law and medicine. Latin is still used today to describe many religious tenets, as are words that are specifically Greek.
English is wholly lacking, as it is a mongrel language, full of contradiction, idiom, and is imprecise.
A bible in Latin provided access to the entire world, the entire canon, in one language, instead of requiring people to learn many, and in the future, unspoken languages.
It wasn’t translated to deny anyone, rather to enable everyone of the time.
Proof
My teacher uses to say, "Show your work."