Would you acknowledge that there are plenty of ways a large supplier(let's call them whales) are able to make an exchange less than voluntary?
More accurate to say whales have more pricing power, but that power is not without cost in terms of liquidity and risk. I don't think it is accurate to say pricing power = violence.
I think it's naive to believe that whales haven't committed violence to hold their positions. It might even be that most violence is just whales trying to sway markets.