That guy that prejudged you sounds like a tool. Good luck with your studies and pursuits.I am going to school to do more institutional design, because I wasn't enough of a relationship builder, and the product is something people, don't know they need yet.
should you find yourself in a selling position again, check out the book I referenced. Challenger selling doesn't require the type of relationship building you are likely referring to. Relationship salespeople are often the least successful.
He was a tool. I "accedentally" got with someone with amazing dreads, after I quit talking to that balding egotistical dude, just to burn him a little bit. This is the only way I read anymore, while I do math homework.
http://audiobookbay.co/audio-books/the-challenger-sale-taking-control-of-the-customer-conversation-matthew-dixon-brent-adamson/