> Notably, I think some people who's job involves manipulating abstract ideas don't think it's their job to put spend time putting concepts into a form appropriate for a given person - the concepts being expressed in an abstractly correct fashion is sufficient.

If your job involves manipulating abstract ideas, then surely you should know that different people have different abstract representations of those abstract ideas! The more abstract the concept, the more “and this is this” “yes, I follow” handshakes you have to do before you get into the details.