When you zoom out though, this engineering problem is a cultural and political one.
If you are designing apps in an environment of scammers and shameless grifters, the options for the societies you can build are reduced.
Focusing on the core issue of "how can we stop people from destroying nice things" is critical for society-scale engineering, as it frees ethical engineers to create more magnificent tools.
Ignoring law / politics / etc, and solely focusing on "how can I design this given presence of grifters" is muted engineering.
If you are designing apps in an environment of scammers and shameless grifters, the options for the societies you can build are reduced.
Focusing on the core issue of "how can we stop people from destroying nice things" is critical for society-scale engineering, as it frees ethical engineers to create more magnificent tools.
Ignoring law / politics / etc, and solely focusing on "how can I design this given presence of grifters" is muted engineering.