Bitcoin is designed to make it easy for everyone to know you did that. It’d be bad if you had to convince prosecutors that you really lost it and much, much worse if you had to convince your fellow mobsters.
You keep a little bit to give to them, so its not worth it for them to do any crime to you.
Like keep 1B available and store away the other 15, or even give them 10 and keep 5 like they when mobsters have 10 billion they have not much incentive to risk killing/torturing you for potentially 5 billion more.
Same for government, you have negotiaton playground.
