Taking the wallet would not attract attention. Only transferring the coins would, and that could be done hours, days, weeks, hell even years after you've finished beating Satoshi with a wrench in his basement. You could be on step "Getaway" before the rest of the world was notified that something was going on.
Stealing the fortunes of conventional multi-millionaires however necessarily involves interacting with the outside world at the time of the theft. Unless they are drug dealers anyway... there is a reason that drug dealers get hit by thieves so often, and it isn't only because the thieves know they will hesitate to contact police.
If he can no longer access the coins (either because he intentionally destroyed the keys, or because he neglected backups), then proving that to be the case would be damn near impossible. In this hypothetical case, Satoshi may very well believe that he has a better chance of making it unclear that he is actually Satoshi.
Stealing the fortunes of conventional multi-millionaires however necessarily involves interacting with the outside world at the time of the theft. Unless they are drug dealers anyway... there is a reason that drug dealers get hit by thieves so often, and it isn't only because the thieves know they will hesitate to contact police.
If he can no longer access the coins (either because he intentionally destroyed the keys, or because he neglected backups), then proving that to be the case would be damn near impossible. In this hypothetical case, Satoshi may very well believe that he has a better chance of making it unclear that he is actually Satoshi.