Imagine someone steals trillion of dollars per year from people and they use it to go out and bomb and shoot people and kidnap and imprison millions of other people.
Scary thought.
Just like in
The Dictator American Democracy SpeechImagine a wallet (hot or not) becomes the market leader and more than half the existing bitcoins are stored there.
Then imagine it's security is breached.
If this happens at a time when bitcoin has been mass accepted and it is a dominant currency to store wealth in world-wide - then a criminal could be in possession of half the wealth in the world.....
Sounds surreal and could not happen in a FIAT system.
We can do a 51% attack anytime if this really happens

Shady road to go down. Also, if this really happened it would probably be late for bitcoin and whoever still had some would abandon it because of simple fear. And rightfully so.