I see what you mean but who gives a shit? He likes how the car looks, he most likely bought the thing with his own money and isn't contributing to the pollution of the earth (assuming that we'll come up with a proper method of disposal for the batteries) in the same manner as someone driving a regular sports car. I'd bet that over 95% of people who own high performance cars never come even close to using their car's potential, nor do they drive in a way that comes even close to exploiting what the car can do. It looks like, it makes them feel good, and that's probably the reason they own it... same with this guy most likely.
I agree that it's his money and he can spend it how he likes and can buy the car for whatever reason, however, I think it hits back to what Farfisa and I were touching on regarding Tesla's marketing. While it's true that most sports car owners will likely not really come close using the car's full potential, sports cars typically have certain characteristics that make them considered a "sports car." Tesla's initial marketing was based on it beating Porsches and Ferraris in drag races, but the 0-60 time is all you seem to hear about when it comes to the car's sportiness. It definitely doesn't handle like a sports car, being heavy with the batteries with poor weight balance, and its stone-like low-rolling resistance tires do nothing to help with that. So, if you want to know about their mass market impact, it will likely depend on their ability to continue to market their cars, however, it clearly has forced companies to look towards finally designing better looking electric cars.