I've actually seen a (Sales) executive, without a seconds worth of technical experience, bad mouth Ruby / Rails in meetings. He would say that it was a competitive disadvantage to use it. He would say that if our customers found out we used Ruby on Rails that they'd leave us. He had a few other things he would repeatedly say about it. It was all so bizarre.

FWIW, he was fired after about 18 months on the job (for reasons unknown to me).