The guy who facilitates your mortgage contract isn’t getting your mortgage payments. The corporation that employs them is. The guy is making a wage or maybe just an hourly salary, plus commission.

By your logic, the checkout worker at costco is skimming off your wages to gate your access to food and clothing.

Even a sleezy car salesman who is trained to convince you to sign an extortive contract isn’t oppressing you. He isn’t betraying you at a class level. His plight is exactly the same as yours.