The answer to the categorical "why do scams exist" is based on current systems which have misaligned incentives. Banks do not view the problem of money forwardi

The answer to the categorical "why do scams exist" is based on current systems which have misaligned incentives. Banks do not view the problem of money forwarding scams large enough to fix. If there were added regulatory burden of getting fines, class action lawsuits, pressure from the media or Congress, then the economics may change enough to fix their operational deficiency. Look at other dark patterns that used to exist but no longer do, like suppressed salary collusion between Google, Microsoft, Apple 15 years ago vs now. As technology and society changes though, more opportunities for new dark patterns emerge. It takes a lot of dead bodies and time before politics and policies take notice and build up enough outrage to catalyze a change.