Satoshi has a
balance of nearly 1 million BTC, let's guess what will happen if the wallet can be accessed by someone, whether it's the owner or maybe a hacker. Will the price of Bitcoin start to crumble and start not selling?
If it's hacker he will sell it ASAP and it will make Bitcoin price has major dump, because 1 million BTC and FUD will affect Bitcoin price a lot.
Well. If it is a hacker, BTC would go to zero. If a hacker can crack that many addresses, that would mean that bitcoin has a serious weakness, and the same hacker could crack almost any address he wants.
But if it would be Satoshi, or a hacker that stole the keys from Satoshi, then that would just be a temporary "glitch" in the price of BTC