While I won't disagree that there are doc's out there that do not understand and/or like EMS, and that some may be medical directors somewhere (though that doesn't make a lot of sense) you might want to either rethink why these things are happening, or have some good reasons for why the lack of those meds and equipment is the doc's fault.
Have any of the services you work for requested to get CPAP? And that does not mean the line personnel, but the management...you know, the people that run the service.
How many of the services you work for need CPAP? Or activated charcoal, or combi-tubes?
Activated charcoal is not part of many places treatments. Whoopee. Same for combi-tubes.
Who "shot down" combi-tubes as a BLS skill? Why was it done?
Those medic's that can't carry the drugs you listed...why? Is it because they carry alternatives to them and their service (remember, that means the people running it) has never requested to carry something else? Is it because the doc who's responsible for their actions has, possible justifiably or not, no faith in their abilities?
Before you start blaming everything on someone else, it might be good to answer these questions...lend a bit more validity to what your saying.