this is not about moral busybodies. it's not even a moral issue. it's an existential issue. this is about demands from the population to be safe from scams. those scammers ruin lives. do you think those people really prefer to be scammed and lose their life savings?
the correct solution is of course education, but education takes time. we can educate today's children so that they can protect themselves in the future. but that's the next generation. for the current generation that kind of education is to late.
the proposed solution is a stopgap measure. do you have a better idea how to solve the problem? (maybe putting more effort into persecution, but that costs money. or making banks responsible for covering the loss. but then you'll get banks demanding the protection. tyranny of the banks then? is that any better? that's actually happening in europe now.)
not doing anything will hurt a lot of people and make them unhappy. as a government you really don't want that either.
