> Then I think there's Adam Smith's ideal form of capitalism

People have this idea that Adam Smith "idealized" capitalism or that the Wealth of Nations is some sort of manifesto. It's much more of an empirical research (by the standards of the time) with observations and findings. It's equally useful if you're a communist or a free-market capitalist.

Adam Smith himself was fairly skeptical of massive corporations capital accumulation:

> "The directors of such companies, however, being the managers rather of other people's money than of their own, it cannot well be expected that they should watch over it with the same anxious vigilance with which the partners in a private copartnery frequently watch over their own. Like the stewards of a rich man, they are apt to consider attention to small matters as not for their master's honour, and very easily give themselves a dispensation from having it. Negligence and profusion, therefore, must always prevail, more or less, in the management of the affairs of such a company."