I think it is silly that so many folks do exactly what you profess they do in your OP, you are absolutely correct. But, that is their prerogative and they are welcome to frivolously spend their money however they desire. Is it a bit ridiculous? In my opinion, and it seems yours, it is, but it may not be so in their opinion.
I guess my major question is - why do you care so much what other people do with their money? I am a CPA and don't believe in debt nor do I think it is smart to buy many cars as compared to net worth that so many do. As such, I have never bought a new car in my life because I feel it is completely foolish to take that depreciation hit. I also think leasing is absolutely terrible as it relates to sound financial decisions, but many folks do it. Are they making stupid financial choices? I think so.