In med school I was friends with a number of pharmacy students, my dad was an optometrist, and I've seen a lot of bad doctors so I've never really seen the appeal of doctors looking down on other professions as a whole. Also, non-physician healthcare people have different perspectives at times that when I'm made aware of them can make my day easier or improve things for our patients.
The insulin part resonates here. While I actually like titrating insulin in uncontrolled diabetics (getting their sugar from 300 down to 150 is one of the bigger wins I get on a regular basis), I wouldn't necessarily mind someone else doing it.
But, now that you've expanded on what you think pharmacists can add it does give me a few areas of unease. If you're doing most (all) of the medication management in chronic disease patients, what exactly is my role in this other than initial diagnosis? Am I relegated to the parts that, at present, my understanding is that pharmacists aren't as well trained for - basically exam skills? Also, I really enjoy doing the medication management. Sure its nice to make the diagnosis but for most chronic diseases that's the easy part. But figuring out the right treatment for each individual based on their unique history and tinkering with things until we get it just right - that's fun. And last, like many doctors I'm something of a control freak. I don't even let my nurses take a history or pend medication refills, I really don't like the idea of someone (anyone really) who isn't me managing my patients' problems unless its something I can't do. Now I know that's not a great reason to not love this idea, but I suspect its pretty wide spread and I'd be surprised if patients weren't receptive to that line of thinking.