In the original boardgame, when you saved enough gold to level up your character in the next settlement visit, you were pretty much certain something bad happening along the way...usually they stole your gold so you had to enter another dungeon and maybe die....(the game is absolutely brutal).
That's part of the reasons it's a so loved game and prices are out of the roof for a copy (even if luckily Games Workshop published two games in the same vein recently, Silver Tower being my fav one since the original Warhammer Quest).
I understand one immediately points the finger to the 'thief dev' wanting to steal your money, in this absurd scene set by freemium games ridden with iaps (I actually warned the devs back in the days about this kind of perception), but I can assure you it wasn't the case.
Ignore the gold iap (as everyone else I guess, I'm pretty sure nobody ever paid for that) and enjoy one fantastic game (played at hardcore is imho one of the best tbs ever).
Just know very bad things can happen....so they can steal your gold, you can break a leg, be poisoned....without anything you can do about it.
One time a lightening almost killed my Marauder because of his steel armor.
I love this game.
But I love the boardgame too and the Old World setting.