I think morals are fine until they are applied to me. That is your morals not mine. Because we all have different experinces through life our own morals are formed and adjusted on a daily basis through personal interaction or even reading a thread such as this. Would you photograph animals having sex: some would say is it necessary to display this image? If the subject was about sex of certain animals perhaps yes but just to photograph because they were humping and then you having a laugh. And then again what's wrong with a laugh?
You live and die by your beliefs and morals and if you see a photograph that offends you then take what action you deem appropriate. Ignore it or complain; simple really....