Sam Bankman-Fried is the most efficiency promoter of "not your key not your coin" (nyknyc). He promoted nyknyc involuntary, but it is more effective than any good advice from a nice and qualified person. Even if Satoshi Nakamoto himself would show up to giving many interviews to the mainstream media and repeat nyknyc over and over again, it would be that effiecent.
Maybe the Crypto Industrie needs such tragedy like FTX/Alameda so that average joe really understand nyknyc.