I don't want to sound negative, really. It's a great tragedy.

But when you are a wealth advisor, one of your jobs is to inform your clients about the inherent risk of all forms of investments you deal with. As for cryptocurrencies, your duty is to tell your clients all their money can evaporate in a second and they won't be able to do anything about it. If they don't like that, they can use other forms of investments. In my country it's even regulated: the client needs to sign a statement they were informed about it and they accept this risk. So no reason to commit a suicide because it's not your problem in the slightest.