And the other thing is that the company may itself be actively involved in politics that some of its employees may object to. Google actively tries to control t

And the other thing is that the company may itself be actively involved in politics that some of its employees may object to. Google actively tries to control the political debate through youtube. Its positive discrimination policies may be considered by some of its employees as objectably discriminatory. I can understand that the company will not tolerate anyone publicly disagreeing with its political stance but it is a natural thing for their employees to discuss the politics of their employer between them. Though given the little tolerance of large companies for disagreeing their politics (not just in the Silicon Valley), the said employees would be well advised to not do so in writing.