And THAT is the problem with most traditional elites. They get lazy and they exploit their power.
And capitalism is tailor-made to make sure that this always happens. Capitalism is founded on the fundamental premise that owning things is more valuable than doing things. That effectively all of the benefits of the doers should accrue to the owners of capital, because the capital made the doing possible.
This does two things as cited above. First, the competition forces the elites to justify themselves on a regular basis which keeps them on their toes. They understand that if they slack off or lose competency they will lose their position. And secondly when they are inferior they will be replaced and their superiors will take their place.
Capitalism is tailor-made to make sure that this never happens. The fundamental nature of capitalism makes absolutely certain that those who have capital can easily acquire more, while those who have none can never acquire any.
Hence why you get calls for burning down the system, be it from Marxists, "crypto Marxists" (whatever the hell that is), or what have you. It's not that Marxism specifically is necessarily attractive. It's that the current system is actively hostile to the increased well-being of the vast majority of the population. This is also why you get calls for make-work jobs. If the benefits of increased productivity are never seen by the vast majority of the population, why the fuck should they care if productivity goes up? When increased productivity exclusively benefits 0.1% of the population (to within a rounding error), 99.9% of the population has no vested interest in continuing to increase productivity.
So, redistribution, or just outright destruction.