In the last few panels the banker is gone and the philosophers are leaving unharmed, so once again the day is saved by the Philosophy Cop.

What a terrible comic. It very much gives a “I just found out about communism” vibe. Without banks, you wouldn’t even have the choice to get a loan to purchase a house or get starting capital for a business. And about the interest part, do you expect them to be a non profit? How will the banks pay their workers? I agree that the rates are too high, but come on, it’s a service that you choose to make use of.