On the contrary, rich narcissistic people already have the touchscreens in their cars. Those who wish their cars had a large touchscreen are people who can buy a new car every 5 to 10 years and they bough 2-3 years ago and didn't pay for a touchscreen upgrade.
I have a touchscreen on my 10 year old minivan. 10 years old and mini-van both loudly scream that this is not a vehicle that you buy to show off. 15 years ago a touchscreen was a novelty to show off, but now everyone has them.
But maybe the jealousy is a too strong of a word.