There are many many wrong things that have happened throughout the course of history on every continent. I think what's past is past learn and move on.
It is obvious that the Japanese are a very dignified race. We could all learn alot from how they handle this crisis. No screaming, shouting, looting or histerics (I will say 'yet' as we don't know what utter desparation will bring). Orderly queing for food and water that they are now in dire need for. Bowing politely to each other, respectfully caring and keeping emotions under control. Contrast their behaviour with for example the children in Jamie's Dream School that was on last night - shocking! And that microcosm(?) of 20 teens in the UK is an example of what is going wrong in this country, kids who have absolutely no self-control, disrespect for adults, couldn't care less about each other... going off the point here.
You could say why should we help? Why should we help anyone? Not because they deserve it but because we are all human and, as my mum always used to say 'but for the grace of God, there go I'.
Yes, Japan is a wealthy nation but then so is India if you look at how many have individual wealth and the number of Indian billionaires who daily fly over the Mumbi slums in their jets, yet we still have to help and give aid because these people are so non-compassionate within their own structure (not in all cases of course but in general) .
Finally, I think human beings over animals at all times but, animals need us to care for them too (my dog is a rescue dog from the Dogs Trust and if the house was on fire I'd go in and rescue him, after my kids of course).