Keep in mind you evolved to be vicious, selfish and short sighted. You may as well feel guilty for not figuring out Friendly AI yet, and ignore the fact that we weren't designed to be good at math.

You can lament part of what you are and try to change it or minimize the negative effects, but much of the 'blame' is on evolution.

I just put $2 in a vending machine, we can't even optimize selfish goals very well.