It depends - usually the thinking is that this has an impact on the company's bottom line, therefore employees are forbidden to act like this in public. Internal dialogs are an entirely different matter on the other hand.

And in open-source I actively avoid projects that are run by jerks, because my thinking is that an open-source project has less chance of surviving and flourishing when being led by jerks, plus the community's support will probably be frustrating. So that's part of the cost analysis I'm usually doing, with the exception being big projects that are very well established.