You do realize that your perspective is narrow and only applies to someone at a certain income level right? Isn't it still silly if you make 350k a year and drive a 15k car, live in a 80k town home? To basically not spend the money you earn, that makes sense to you? I am sorry but I can't really think like that. A car that would have made sense for me 10 years ago when I was still in college (yeah, I am that old) would not be the same car I would want now. Actually I didn't own a car and rode a mountain bike through most of college so it really wouldn't apply.
10 years down the road I imagine my taste will be more expensive unless I completely fall off in my career, so I am not getting your wait 10 years angle.
I am not an environmentalist by any stretch of the imagination and if I was going to be politically active, cars that get 27 miles an hour wouldn't be at the top of my list of things that need to change in the world.
In college I was an active memeber in "Eyes Wide Open" which was an organization that dealt with racial issue that a friend of mine who was ironically from Phillidephia mississippi started. We organized several disruptions at
David Duke ralley's when I was involved.
I also was founding member and president of the Normal chapter on my campus and was a weekly speaker at free speach alley which was an open mic political forum at my campus. I was active in war protest for both gulf wars, the second of which was after I was out of school and past my politically active student years.
So my car getting 27 miles a gallon is not something that stresses me one bit, sorry if it is something that offends you but maybe you should get more involved than just calling out someones ride on the internet.