So Pan's theme got an official release and it's called What Gold Cannot Touch.
I lovelovelove this name so much. I am sure there will be people coming out with cool ideas on it soon! ^^ For me the first thing I think of though, is Pantalone's ambition/conviction.
Ultimately Pantalone doesn't actually care about mora in the way a banker or businessman should. He isn't hoarding money for the goal of being rich imo, and he doesn't even view its value the way you would expect. Mora is fundamentally another symbol of the divine shackles put on humans. Something given to them that they believe they can control but never really will. Morax's blood turned into something believed to be inherently valuable and always utterly tied to Him as well.
What Pantalone cares about is the authority and the control money represents. And the ability to impress your interpretation of "value" onto the world. Those who fight and work and outsmart should be the ones who get the power money brings, all the way up to the ultimate power, the one who owns the currency at the top. Hence why he wants to overturn mora and create a new currency for humans.
So I think the title means, that while people may look at Regrator and see a purely greedy, mora-hungry capitalist, all of his "gold" has not actually touched his soul, his inner ambitions, his truth. Its part of the game. It is the current blood of the world that he needs to manipulate before he can truly replace it. His existence is drenched in gold but it will never taint or tempt or 'touch' the deep inner hatred that motives him to burn that very gold down.
