If you know your company is "assaulting somebody" or something obviously illegal, I think you have a duty to let superiors know so that something can be done to fix it.
People are both employees and citizens and sometimes must choose between the company and thier own society at large.
Sure, that benefits Google. But some people care more about ethics and don't want Google to get away with potentially illegal actions.
1/ Your company could act legally and you think it is acting legally.
2/ Your company could act illegally and you think it is acting legally.
3/ Your company could act legally and you think it is acting illegally.
4/ Your company could act illegally and you think it is acting illegally.
Case 1 is fine and case 2 will spur no action from you, so we can discount those. Case four is protected under whistleblower laws, and you should get your own lawyer and only talk to them in no discoverable media anyway. Case three is where corporate policy applies and where you should probably not speculate in email because, well, you're wrong.
If you're on the fence between three and four, talk to a lawyer anyways and get off the fence. Find a firm legal footing and then pursue the issue.