It's also an Unfriendly optimizer. Capitalism's local maxima often consist of things like Gilded Ages and Great Depressions in which return on investment is maximized to the hilt at the expense of nearly all other values. Yes, once we force it out of those local maxima, it goes back to generating wealth in a way that people actually want it to, but eventually, without deliberate management to keep it out of them, it always finds another damn local maximum to get stuck in.