"The super-rich continue to squander humanity's chances with their lavish lifestyles, polluting stock portfolios and pernicious political influence. This is theft—pure and simple."
Marx’s impressive predictions are a direct result of this analysis. Weber paraphrases Marx as appreciating that “the limits to the exploitation of the feudal serf were determined by the walls of the stomach of the feudal lord.” Under capitalism, on the other hand, we have profit-oriented commodity production. This means that neither “stomach walls” nor any other kind of natural limit impose themselves: accumulation can be infinite, and since everything is tradeable with everything else, the capitalist not only can but must (in order to compete) accumulate without limit. Growth for the sake of growth, a growth that is indifferent to what kind of work anybody actually does.
from https://redsails.org/why-marxism/
The fact that Marx continues to be relevant today really highlights the power of material analysis.