Depends if the person was already hoarding wealth before or had the desire to. Generally those who have a desire for wealth tend to hoard gold as dergs, those who don't, well they don't.
I've just accidentally burnt my boss to ashes. I then scratched my smartphone while I was writing this. Bloody fire breath and claws. I can't even get through the door because my wings are in the way. And how am I supposed to pay tax on this huge gold hoard? Damn you, random internet people!