You'd have to buy $22.3k worth of Plex, which can then be traded to ISK, to be able to buy those assets in game. Because you can buy plex with cash which can be

You'd have to buy $22.3k worth of Plex, which can then be traded to ISK, to be able to buy those assets in game. Because you can buy plex with cash which can be used to obtain in-game-currency, it gives the in-game currency to a real world dollar value.