The latter. I was using "manage" in the sense of "regulate and control", not the more-specific concept of a "managed economy", where governments set prices. I can see how what I said might have suggested the latter, though, due to choice of words.
It goes somewhat deeper than simple legal regulation, however. Interest rates are managed by governments as well. We've seen what unregulated and uncontrolled capitalism results in; it collapsed the global economy through repeated boom-bust cycles, capping off with the Great Depression.
More specifically to capitalist theory, however, I default to the origination; Adam Smith's
Wealth of Nations. At least for idealization; Smith was as poor a judge of human character as Marx, in the end. Specifically, my issue with
modern capitalist theory can be summed up with a few quotes from that text;
It is the great multiplication of the productions of all the different arts, in consequence of the division of labour, which occasions, in a well-governed society, that universal opulence which extends itself to the lowest ranks of the people.
Specifically, here, he details that the end
goal of a capitalist system (or any economic system) should be the enriching of
all members of that society, even the poorest.
Consumption is the sole end and purpose of all production; and the interest of the producer ought to be attended to, only so far as it may be necessary for promoting that of the consumer.
The maxim is so perfectly self-evident, that it would be absurd to attempt to prove it. But in the mercantile system, the interest of the consumer is almost constantly sacrificed to that of the producer; and it seems to consider production, and not consumption, as the ultimate end and object of all industry and commerce.
Here he lays out that not only should the interests of the consumers be prioritized, the
only reason to consider the needs of
producers is to benefit the
consumers themselves. And that this should be so obvious he shouldn't even have to say it. And you'll note that his description of the
failures of the mercantile system pretty accurately describe
modern capitalism, which has veered so far from Smith's envisioning that it's essentially returning to a mercantile system, rather than a capitalist one. Particularly by individuals such as Trump, whose economic nationalism is practically Mercantilism 101;
https://www.econlib.org/library/Enc/Mercantilism.html
I honestly wouldn't have much issue with a
properly capitalist system. Where Smith's views fall apart is that the producers make the money, and money translates to power, and power begets more money, and once that cycles through enough times, we're back to mercantilism. This is why I'm a socialist; I can't support mercantilism's predatory approach that only benefits the elite, and capitalism utterly failed to protect against that. So, socialism.