Because lending to them (as the Gov and Banks do) causes their wealth and US money supply to increase while your income remains relatively constant. That causes

Because lending to them (as the Gov and Banks do) causes their wealth and US money supply to increase while your income remains relatively constant. That causes things they value (healthcare, education, real estate) to increase in price faster than the majority of people can afford to buy them. So yes their wealth and buying power affects you and everyone else economically.