Plenty of businesses operate off the principle of losing money on one product SKU while making it up on others. Think Dollar Shave Club, game console sales, etc

Plenty of businesses operate off the principle of losing money on one product SKU while making it up on others. Think Dollar Shave Club, game console sales, etc. I imagine banks could take a hit on low-income accounts and make it up on high-income accounts. But apparently they just don't have the financial incentive in this situation to do so. I just wish the moral incentive was enough.