It doesn’t work that way. You spend a week in a cold dirty room with insects, hungry, isolated, misinformed with worst fears and perspectives. Occasionally you speak with an interrogator who can bet on the time of your mental breakdown by simply looking at you for a minute. This is a well-known procedure that doesn’t even require a knowledge of what should be revealed. Trained people can stand it if stakes are high (military high, not your extra BTC), but don’t overestimate yourself. You will break down not even being touched by a finger.
Gee, that got pretty dark. We are just comparing options here. Physical things are easier to get from you. It's hard to argue otherwise since information can be represented as a physical thing, but it gives you more options. You can split your private key between 5 friends you trust and make 3 of 5 required (+ password why not) and in general get pretty creative.
If you are spending a week in a cold dirty room etc., and especially if some gov got you there, I don't think it matters much how guilty you are or what wealth do you have. They own you.
