I'm referring to those who don't produce anything, or who don't really provide a defined service, but make money manipulating currency, commodities, stocks, etc., using other people's money to do it. It's a different category.
I'm not criticizing or casting aspersions at financial services people, stockbrokers, traders, hedge-fund people etc. as a whole - at all. However, there are those, for example those who use extremely fast fiberoptics-based trading networks to manipulate the market, who are making a ton of money while introducing instability into the markets and in a very real way hurting the finances of those people who are putting away a portion of their paychecks every month to fund their 401K. Anyway, it's a longer conversation, but I understand entirely your comment. I think we're just talking about different things.
More money is made 'manipulating currency' than any other 'industry' in the world. A future solution will be a stable trade currency - but that's a ways off. Your other concerns are 'just the way' a sane capitalist system works ... in need of small tweaks but not much else. Read Sowell...