I dunno... for me, the intuition, or "gut feel" I get in talking to someone is often more important in deciding whether or not to to business than any deal in front of my face, so if that's considered "emotions", then I'd never want to take it out of my business dealings.

Likewise, there are generally enough players around that if someone is an arrogant putz I don't like, I can simply avoid that person and find another company offering the same service. And by the same token, I'll do business with someone I *like* even if it's not the very best deal I can get, over someone I dislike... so again, for me at least, the emotions are pretty important to the business dealings.