That is just the cost of doing business. And they have the statistics figured out well enough to know what rate they need to make money and cover the similar cu

That is just the cost of doing business. And they have the statistics figured out well enough to know what rate they need to make money and cover the similar customers that default on their loans. But we've heard countless of stories where banks "rearrange" the order of transactions such that there is multiple overdrafts and thus fees. That is an example of something not in the customers best interest, but designed to suck out as much money as possible.