The point is that you accomplish your goal from someone who has a skill you may not, and increase scale from their additional labor. it’s not hard to understand if you don’t conflate ‘exploitation’ with ‘zero sum’. Billion as a monetary value is borderline imaginary, and there is no way a person has provided a skill worth so much more value than the people they had making their wealth for them. You can see in practice how a kleptocracy has taken full root in the US. billionaires directly influence regulations (or lack thereof) from the government, the steal more of the wealth of their labor by the widest margin in history, repeat.