If you think real-money transactions for in-game services begins and ends with the token... I have dinosaur DNA to sell you.
And Blizz didn't 'create' a real life community, at all. As proven by the cheaters and exploiters in basically every online game ever, players will do whatever they can to gain a shortcut or an edge. People bought gold for money in vanilla, which led to a ton of compromised accounts, which were used to farm more gold for more real life money.
The token was a response to that.