Happens all the time. For example, Groupon recently dropped all firearms-related deals on the wave of the craziness that is going on. I, personally, cancelled my account with them the next day and would never buy from them anymore. I am completely certain them and the shareholders don't care too much. Same Google - losing couple of ad dollars from some independent shop is nothing to them. If their deals with Amazon would be under threat that'd probably be different business. And the government probably has absolutely nothing to do with it - if it were government-enforced, it would apply to Amazon too.