Highly creative people are also very sensitive people even though they can come off as abrasive and callous. Many times this is a protection. Highly creative people who invent things consider their creations to be like their “children”, and have a tough time taking criticism about their products just like someone calling a kid ugly or stupid in front of the kids parents.
Artists can be the same way about their artworks (diving products, paintings, sculptures, music, acting, etc.)
They see attacks and criticism as an attack directly on them as their work to them is a part of their person, their personality,
This is why they get testy and take everything personally, their creations expose their inner most sensitive self.
Being a creator and innovator can be a very grueling and painful ordeal.
Creators and artists are not always people persons.
They need to realize this and let trained people persons to do the sales work.
Many very talented creators have self destructed because of this.