That is a very simplistic perspective of 'capitalism', it is a bit more nuance than that. It typically requires intervention to prevent it from destroying the economy because of insider trading, liquidity, and monopolist practices. The only criticism you say about it mirror aspect of our-selves that we don't like to admit. It isn't perfect but people are not perfect how-ever based on how fast we're pull people out poverty, you have to admit its pretty good!