It's human nature to disagree with each other because of ignorance. Different people behave under different ethics codes, and what might sound wrong to someone it's completely fine for someone else. That's why we have laws to govern humans and keep them in check. I have stopped caring about minor conflicts; if someone wants to disagree, let them disagree; however if they can't back it up with facts and evidence, I have no patience to give them a second of my attention.