The financial industry is a big ass vampire sucking the blood from the lower and middle class. They add a lot of value. Don't like them? Feel free not to lend or deposit. Or get in on the action. You can buy financial stocks for less than a $5 commission. So yes, the financial industry, via interest and fees, sucks "money" right out of the economy. Because they hide their earnings in a jar in the yard. DERP! You still didn't explain why a 50% corporate tax rate yields more investment than a 20% tax rate.