I'm sure plenty. Even if a company has a great idea and an awesome product, if they can't sell it to someone, they can't sell it to them. If you are presenting a deck to someone, it'll reflect on the whole company and product.
Awesome deck = maybe an awesome company.
Crappy deck = they couldn't spend time making it nicer, probably not worth your time.
Awesome deck = maybe an awesome company. Crappy deck = they couldn't spend time making it nicer, probably not worth your time.