I have experience with engineers succeeding in sales, but it was B2B selling to other engineers. This can be very effective especially when your sales team includes regular sales people to handle any non-engineers in the process such as the purchasing director. But when the product is technical and the customer is an engineer....very true... but then again, we're also quick learners. Even those of us who were born with no social skills eventually have to learn how to sell our technical skills...
I think our TS has little chance selling his products at retail but perhaps another engineer would see something of value in his efforts. Or not.