As far as that goes, I don't see trades as immoral, as long as traders are following our laws and the rules of the market. I'd go so far as to say it's virtuous. Trades communicate price information, and that's good for everyone.

If you're concerned about the immorality of economic choices, then you should consider the idea that you yourself are already acting in grossly immoral ways with your money. Read this to see why: https://www.nytimes.com/1999/09/05/magazine/the-singer-solut...