How does karma relate to the individuals who are found innocent after spending decades behind bars? Would you have us believe Karma punished them for offenses unknown to us? If so, we could use Karma to justify every wrongful imprisonment by claiming they must have done something wrong for if not they would never have been found guilty.
Not to get too metaphysical here, but my personal belief is that the "misfortune" we suffer in this lifetime is a soul lesson that we are here to learn. I believe in the evolution of the soul over multiple lifetimes, and that we have the choice (free will) to evolve or not as the result of our circumstances. Karma's recourse isn't limited to the lifetime in which the error is committed. Although my body is limited to this incarnation, my soul, being eternal, is not. Therefore, I believe that at some point in this or another incarnation, I'll either suffer or benefit from my actions today. That's why when "karma" is instant, we feel life is fair. But when karma is delayed (like when the pedophile wins the lottery), we are certain that it is not.
Recognizing the ego for what is is - the cause of human suffering and discord - is the first step in spiritual evolution. Based on his public persona, Rush is nearly all ego, which is why I find him difficult to stomach. The fact that he uses his "talent on loan from God" to appeal to the ego in others through fear and divisiveness is unfortunate. He could better use his talent for public speaking and persuasion in a more useful way, imo. Appealing to the spirit does not ignore injustice. Jesus and Ghandi, for instance, come to mind as great teachers who chose to "fight" injustice through encouraging others to focus on spiritual development. It is the only method that will work if we ever hope to have peace, either as individuals or as a society.