I agree with Elements in the sense that it would be truly interesting to play a world with no coins or a cap of say $20. Obviously this approach doesn't align with the business model, but no Gwens, no coins, just skill, activity and strategic approach to the game would rule out. I would 100% be interested in that type of competition, though I suspect many would shy away from that type of competition.
Hell, I would even possibly play a $20 buy-in game, here are your fixed amount of starting crowns, everyone has the same capped amount so use them wisely and efficiently and then everyone just goes at it with a 100% level playing field.