This is the term the LLM and I came up with for the total lack of Social Salience. It isn’t a medical term and searching for it doesn’t provide any hits.

I like the term because “pure” signifies that it is absolute or binary. The salience is not “low volume” or “noisy” as in the Autism Experience.

A-salience uses the “A-“ prefix to mean without.

Social salience is completely missing.