The law of the jungle still applies. Everybody knows that. But it is not a matter of eating or being eaten. That is a misconception. Everybody will be eaten, rich and poor, good and bad, everybody will end up as food for someone else; worms, insects and microbes. Life is completely just.
All life here on this planet stems from one single cell that was formed almost four billion years ago. This cell divided itself into two cells that divided themselves into four cells and so on. All life here on this planet is really one organism.