Raj,
Try to watch this special that Robert WHore-SHA-VAC from "Shark Tank" made about being a good salesman.
The greatest point is that being a great salesman is a skill that can help you in everything you do, and this is coming from a billion-air.
So these are the key elements that make a great salesman: personable, knowlegable, trustworthy, and a good communicator.
Of course being a good salesman can be used for good or evil. In my younger days I did something I was not proud of, but I learned I was a good salesman. In a way it was my job to take advantage of people and sell as much as I could.
Perhaps I was in my early 20's and took on a part-time job for extra money working at "Ed's Tropical Aquariums." It was not a pet store and only sold tropical fish. I was "trained" to push the 10 gallon starter kit which cost $9.99, and realize this was in the very early 1980's, but the sham was to convince customers that they needed extras, and this is basically where you bilk the customer.
I kinda learned that I was a good natural born salesman because I easily sold over $190.00 worth of extras with every $9.99 tank I sold. A big part of this was all the upgrades, and then you added in the extras, and it took a lot of skill to nurse people along a devious path by manipulating them. Surely this was just being dishonest. Understand that the basic starter kit was only the tank, a cheesey filter, and some gravel (your choice).
Anyways I will say I am not proud of what I did, and know that I am sorry, but I did learn very early in life that I was a good salesman. Today I actually make it a point to be generous, and if anything I give people good deals or even deals of a lifetime. Call it retrobution.
Also know as a kid I was very clever in manipulating adults into spoiling me, and generally as a kid I got away with a lot. Possibly part of it was good looks, but mostly because even as a kid I was a good salesman.
I have found what Robert Whore-SHA-Vac said to be true; "Being a good salesman can help you in everything you do," but for me it has moral consequences.
Cal