They’re literally doing capitalism. M - C - M’ is described in the first part of Capital. This is money operating as capital. Buy a commodity for M, then sell it for M’ that is greater than M. You have no interest in the use value of the commodity. The only thing that matters is it’s exchange value.
See how upset most G*mers get at anyone bringing up the possibility of someone cheating. Unless it's glaringly obvious wallhacking or teleporting, most will say "git gud" or "mad because bad" because they want to keep the facade of meritocracy for all but the most obvious cheaters.