I am about to get philosophical.
If we look immediately at what it means to invest, what we come up with is a profit equation. One tries to maximize the expected profit of an investment, taking into account risk.
But let's try a thought experiment. What if you had 1,000 times more money than you do right now? So if you're a millionare, you're now a billionare. Would that change what you invest in? In what ways would it do so?
Would you start making even larger investments, with even larger returns? If so, what if you had 1,000,000 times more money than you do right now? At what point does profit for profit's sake become pointless?
I think that deep within yourself, you know that investing is not merely about profit for profit's sake. Somewhere in there I think you recognize that by choosing what to invest in, you have an awesome power to change the world. You have power that extremely few people have. You are, in essence, the real life equivalent of a super hero.
Based on that, let me ask you this question:
Is this really how you want to change the world?
Is this truly how you want to spend the vast power you have at your disposal?