I think it's the starting point in nature for the strongest things to take everything they can get. Nature is brutal.

Sometimes, people say that culture is human. This is dead wrong. Even in non-human nature, culture can overturn the basic concept that the strongest individuals dominate. We are like chimps, but we could be like bonobos with the right shifts:

https://www.sciencedirect.com/science/article/abs/pii/S0003347216301130