I own a Porsche, I couldn't care less who they are advertising to so long as it doesn't hurt anyone. Moreover, I've learned with anything that attracts that much attention, it's not signaling any kind of attention you would want. I get really annoying attention, on a daily basis. If it wasn't for the tears of joy that I get from driving it down twisties, I would sell it in a heartbeat.
From my perspective as someone in the 1% of my age group and was apart of the set of young and dumb, vain and insecure people, signaling with expensive items is childishly overrated; it's far more fruitful to signal with kindness, compassion and intellect; any trust fund baby can afford a porsche and be as vapid as anyone else.