It won't work.

Satoshi responded to Dorian Nakamoto's trouble when Dorian, through no fault of his own, was mistaken for Satoshi.

There is no way in hell he'll respond to Wright.  Wright opened his own mouth and deserves whatever he gets.  Satoshi has no moral obligation whatsoever to come to his rescue.

The best case for Wright is if nobody believes him.  Luckily for him that's also most likely.

There's a chance the Australian government will believe him, and then gently remind him that he owes AUD$hundreds of millions in taxes.  Whereupon he'll put a lot of effort into trying to prove he's NOT Satoshi.

And if he and his family and everyone he cares about are really unlucky, the mobsters will believe him, and carry out their usual demands via kidnapping, torture, extortion, etc.  Less efficient than government, but essentially the same, really.