Good question! I guess it does matter that he's a cofounder and CEO. I honestly don't know how I would react if we were talking about an employee instead. I'd deliberate and make up my mind there and then. Which sheds light on the fact that the matter isn't as black and white as my comment made it sound.
Possibly off topic:
I work within the criminal justice system and I believe cops are pigs, while I know for a fact that there are good people on the force too. I wouldn't give up my current position just because another "lowly" employee is rotten.