If I bring Starbucks or Jimmy John sandwiches, I will be let in. If I don't, then I won't. This same formula has held true for the 13 years I've been in the field.
It doesn't matter if the armband I've worn says Genentech or Pfizer or J&J. The only value we provide is feeding their staff. Most of us have zero medical training and aren't qualified to teach medical professionals anything. Let's cut the bullshit and be honest about what this job is and what it isn't.
It doesn't matter if your title says CS, COS, or TAM. It's all the same thing to the customer. We are the equivalent of UberEats, Postmates, and DoorDash.