Sure it would! It would serve as a deterrent. Some people shouldn't be handling hundreds of millions of USD.
Karpeles' operation wasn't just unprofessional finance, it was a complete shit-show. The court should have sent the message to others to not attempt something as complicated and risk-laden as operating a financial exchange without even the slightest bit of know-how necessary to do that.
Startup culture can be great, but it's amazingly dangerous when operating certain trades or industries.