Yes if you lack impulse control it'll taunt you. For those who have impulse control it'll just be free arxe there for when you see something in the store worth buying.
Implication being: if you fall for their scam you're stupid, therefore you DESERVE to lose money. Good rationale. I love when my entertainment products continually test my impulse control. It's great when fun and recreation are turned into another test of wills: me vs the multinational corporation backed by the largest videogame investment conglomerate in the world.
I also enjoy that your rationale (correctly) assumes that the expenditure of money on microtransactions is an inevitability, poor impulse control or otherwise.
In the first corner: me, with poor impulse control, not wanting to spend more money on a game I ALREADY PAID FOR, and feeling taunted by the psychological shell game that is ARX.
In the second corner: you, with excellent impulse control (no doubt due to superior breeding and intelligence), feeling not at all taunted by Arx, because you're already spending extra money on microtransactions and are going to continue to do so, all of your own free rational will and not because you are being manipulated into doing so. Since you're already doing exactly what they want you to do, their continual push to get you to keep doing what you're already doing, or do more of it, feels less like manipulation and more like thunderous applause for your smart choices.
Checkmate, Tencent! You can't trick me into buying paintjobs if I ALREADY want to buy paintjobs! In fact, I think I'll buy twice as many paintjobs now, just to show you how not-manipulated I am!