Amplifying that last point:

• Capitalism amplifies and perpetuates injustice. E.g. descendants of both enslaving and enslaved are receiving exponentially multiplied effects of actions 100+ years ago.
• Because wealth is power, concentrated wealth often receives far better than average returns by rigging systems in its favor.

Even ignoring these perversions, capitalism is terrible at answering the economic question, "for whom to produce." This isn't much of a change relative to previous systems, but it compares unfavorably in this regard to planned economies.