I was trying to think how to put this and finally figured it out. When a man beats his wife, and she stays with him because she "loves" him, is that "real love"? Most people would say it's obsession. Or that the man is fulfilling a deep, unhealthy need for the woman.
Is it our place to question whether that is "real love"? Well ... yeah, I think it is. We feel pity for them, but it's not the pity you feel for someone hit by a car. It's not an accident. It's predictable. What's pathetic is that there is something so wrong with them that they live with the risk.
That's what I think of people who get large dogs -- particularly breeds known to have agressive tendencies -- and don't train them. Either they're wilfully blind to reality or they want a large, agressive dog. So which do they deserve: pity, or anger?