It's sad, of course, that a person may have to spend the rest of his life, or a large part of it in prison for acts that he committed while not in full control of his mind.
While the failure to control it is precisely because the division of mankind, perhaps the problem of globalization can only be solved through human solidarity.
Now we don't actually have voluntary control over this particular sphincter, but the autonomic nervous system keeps it cinched up whenever you're not peeing to prevent leakage.