Either you're a newbie or a narcissist or both. The "feeling of accomplishment" will fade with time. After one, five, ten or fifteen years (in other words, however long it takes one to mature enough to realize that "good calls" are a bad thing for the patient) the feeling of accomplishment comes from getting through a shift without having to touch a patient. The only truly good shifts are when no one needs us because that means no one is that sick, in that much pain or suffering that much. 
Maybe it's the burnout talking but it scares me to hear people talk about how some aspect of this job "makes me feel like a true hero" or the "sheer feeling of accomplishment you get after running a 911 call". The former is a sign of an unbalanced and unchecked ego normally because the only truly functional definition of a hero is someone who can control their emotions well enough to function in situations where other people panic and not let anyone else realize your just as scared as they are. If you're not scared or frightened or otherwise bothered by the suffering of another person or animal, then you're a sociopath. There are few things as insulting as being labeled a hero for simply doing one's job, except for seeing someone label themselves as such just because they think they look neat in the uniform.
The latter sort of comment about feeling a sense of accomplishment is a sign that one does not fully grasp the gravity of the situations they are being charged with tending to. There are precious few situations where we make one iota of difference so it is a very smug attitude to feel self-congratulatory over simple things. Most of what we do is simply the professional manifestation of the standards expected from good persons in the vast majority of cultures. I will freely admit that the only reason I remain in health care in any capacity is because it makes me feel good to take care of people who need it, when it comes to medical crises ("running a 911 call" as you so eloquently put it) those are the calls that should give one pause to consider what they have just witnessed not give them reason to clap themselves on the back over every last call. If the feeling you're describing doesn't come from tending to every patient you encounter, then you might just want to take an introspective look at yourself and question why it has to be exciting or thrilling to invoke the positive response you should get from helping your fellow man.
Like I said, the best calls are the ones where the patient never has to go to the hospital and the best shifts are the ones where no one gets sick or hurt.
To be fair...my first though was "newbie or something's really wrong with this guy" as well. That thought coming from a guy who has definite narcissistic tendencies at times.
Not speaking for usaf, but I know I get tired of trying to mentor these folks. They will ignore anything you try to tell them about the true nature of EMS because "your just burnt out". Six months later "your too nice, this isn't a taxi!". Two years later they're gone. To an FD, a PD, flipping burgers, or wherever the winds blow them.
Aren't we all a little off the deep end
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If you actually read what I said, I never said he was a narcissistic sociopath. I said that if someone is not feeling emotions (other than the weird sort of glee some EMS personnel feel and label an "adrenaline rush") at the suffering of a person or an animal, then they have sociopathic features. Labeling yourself a "real hero" because little kids look at you and think you're cool is a pretty narcissistic thing to do. Don't you agree?
Nah, the only Coke fueling me is legal and comes in 2-liter bottles. LOL
