There is the good and the bad the great and the low the just and the unjust. I swear to you that all that will never change.
I think it has other roots has to do in part with a general anxiety in contemporary life... nuclear bombs inequality of possibility and chance inequality of goods allotted to us a kind of general racist unjust attitude that is pervasive.
I've never owned an Apple product. I like the fact that PCs are open architecture and not locked down like Apple products. I feel that Macs are also unjustifiably overpriced.
There was never an angry man that thought his anger unjust.
People are unjust to anger - it can be enlivening and a lot of fun.
If you have not chosen the Kingdom of God first it will in the end make no difference what you have chosen instead.