In most environments I think there's definitely a bias against PhDs as impractical eggheads. In terms of business, I think most investors will look at PhDs as s

In most environments I think there's definitely a bias against PhDs as impractical eggheads. In terms of business, I think most investors will look at PhDs as somebody looking for a large personal research grant rather than somebody looking to start a business -- a reputation I think is often well earned having seen a number of businesses run by PhDs go under simply because they thought the key to the success of the business was more researchy things rather than more customer focused things.