@finner Essential to healthy capitalism (as opposed to some for of Laissez-Faire capitalism that no country is really doing), is authorities regulating the markets, preventing monopolies, ensuring companies don't control access to markets (say through an AppStore or a PlayStore).
The worst offenders in the US in power, say someone like Musk, is completely opposed to this. You could describe them as Laissez-Faire capitalists perhaps. Not many economists in that stream though.
@finner Wanting to be rich and using that power to get richer and dominate society is not really related to the economic system.
Look at Chavez, Xi Jinping, Putin, Stalin, Chairman Mao, they all had/have similar goals of amassing wealth and power for themselves in very different economic systems.
Of course Marx famously suggested social class differentiation was the result of capitalism, but there really isn't much evidence for that in history, nor on the planet today 🙂.