Professionalism is not a disease,
while compulsive gambling is one. Just because a professional gets excited about an activity in which s/he engages, does not mean, imo, that the professional borders on some type of compulsive disorder.
I get a similar excitement when I am trying to close a deal. Even though my "deals" only happen if I am helping someone else, the client doesn't always know that until later. They have to either trust me or be persuaded to move forward even with some doubts. They will later learn that my advice was beneficial.
This convincing part provides some adrenaline and rush, similar to blackjack. I hold the knowledge and I seek to earn money by convincing the other party to "part" with their funds. They aren't parting permanantly, but it could be long term. Sometimes, I may have to employ a bit of psychological play to help the client relax and do the deal. Sometimes I fail and sometimes I "win". I consider this the variance of my profession. I'm very pleased when I win and a bit miffed when I don't. I don't get overly disappointed because I know I will come out ahead over time, uh, the long run.
Maybe it would be more accurate to state APs walk a fine line between being natural born salepeople and being APs. Many of you are academicians, from what I can tell, and may not believe you could sell a product or service. But, if you can put in the time to learn effective AP skills and then implement them, you could also do the same and learn to be perfectly comfortable selling.
The nice thing about AP work is that there is no customer service to bother you. So, get a sales job with a company that provides all the customer service. You may want to try something transactional, which is more in line with cards, ie, many smallish transactions repeated repeatedly (lets see if DS is reading).
Disclaimer: I'm not a psychologist. I'm not even a very good salesman but I like it.