I'm more than even sure that most businessmen do not understand and do not know anything about Bitcoin, Maybe if they really convey information about this, then their relationship in this plan would have changed greatly. It really is so, but you need to consider the scope of each business separately.
As long as that businessman is currently into the trend of internet then he will have he idea about bitcoin. But for example, most of them really doesn't care and don't have an idea on what is bitcoin, that's the time for us to get into their sides and try to tell them what will be the benefits of bitcoin for them if they will use it.