Ahh, in that case, the problem this solves is the database owner has admin power, and could take away your graphics card.

This is similar to how I was always worried that Bank of America would arbitrarily change the balance in my account for some reason, but bitcoin solves this problem. Now I just have to worry about losing my password or getting hacked and losing all of my money, and that's just much less realistic than a major bank abusing their centralized admin powers to change my balance.

There is so much Poe's law content in this thread - not sure if you're being facetious or not. But I'll bite.

If Bank of America deducts money from your account, you can call customer support and threaten to file a complaint with a regulatory agency, threaten to close your account, or just take them to court. No guarantees that you'll get your money back, but at least there's a chance.

If you lose your wallet password. It's game over. 0% chance of ever recovering any of that money.

Do you see the difference though? One is something you can control, and the other is something you rely on other parties mot to do or to later fix.

I would imagine that a majority of the world is fine with giving up a little control to have a chance of getting their money back.