What next, supermarket coupons as a wealth transfer mechanism?
Credit card companies do make a lot of money off of interest. But they also make a lot of money off of interchange fees.
Businesses want wealthy customers because they spend more money, so they're willing to pay a higher interchange fee to access those customers. Higher interchange fees mean card companies can offer better rewards, which in turn attract more wealthy customers to their cards.
So even if credit card debt was not a thing, it would still be incredibly profitable for card companies to sell access to their rich cardholder clientele, and to in turn provide rewards to those cardholders.
If advocates want to team up with Dave Ramsay and say "that's right, credit cards are bad, we want them to be less available", perhaps things could change one day. I'd donate to that cause. If we keep pretending that we could have exactly the same system with lower interest rates, I don't think we'll ever get anywhere.
pixl97•28m ago