An HLC member went to work at a hospital after several months of consulting with them on setting up their "bloodless surgery" center. He became an adminstrator at the hospital, in charge of that program. This was a full-time paid position. This scenario is not uncommon these days. One of his jobs was to serve as the liaison between the hospital and the HLC members, all of whom were people he knew and had worked with when he was on the area HLC.
His job at the hospital was exactly the same as it was when he was on the HLC: to advise JW patients as to what their options were in a surgical situation. He was extremely well-versed on the Society's "present truth" with respect to blood use, including fractions, cell savers, the use of EPO and other drugs, etc.
Every morning he'd review the hospital census report (which includes a notation on the patient's religious preference) and visit every single dub who was in the hospital (and especially those in for surgery). He would introduce himself and make sure they knew he was a dub elder and former HLC member, and then review all the options that were "approved" by the WTS.
He said that 98% of the dubs he saw "had no idea" what the current JW teaching was on blood and were usually surprised (and greatly relieved) when he ticked off all the available options. Almost every one of them then signed consent forms allowing the use of alternate medical management that included the use of fractions and other treatments.
This made the doctors enormously happy, of course. It made the hospital happy because it was a new "profit center" for them (they marketed this to the JW Community extensively). It made the dub patients happy, too, because nobody died. He was especially happy in the Trauma Center/Emergency Room because he was able to give the surgeons wiggle room when a dub was scraped off the highway and presented with heavy blood loss.
I would say you are exactly correct: His job was to make sure JWs take blood (or some fraction thereof, as allowed by "Mother"). And he was taught that through his years of work on the HLC, where he performed exactly the same work without pay.
Not that there's anything wrong with that, of course. But it speaks volumes about the extent to which this whole blood thing is truly "up to each individual's bible trained conscience," as the dub organization would have you believe.